Pr4 ecu obd0. This Honda ECU is also found in the same .
Pr4 ecu obd0 he is in quebec which isnt all that far from me. If you are really wanting to street/dyno tune, go obd1. Factory OBD1 ECU ROM number to ECU number list. Scooter Batteries . com has the cheapest OBD0-OBD1 conversion harness around. It would be nice if someone can provide May 14, 2009 · After building my harness, I have decided to build these units upon request for any fellow 3rd genner looking to convert to OBD1. First Prev 2 of 3 Go to page. Next Last. $119 shipped. Note that some ECUs will be a different generation from the wiring in the vehicle which the engine was originally sold in, and will require an adapter harness (note 6) and/or OBDI ECU swap (note 7). There are shops that have the capability to do so. net chipped obd1 ecus will plug & play into 92-95 honda/acuras. OBDII to OBDI adapter harness required. net’s list, he has pr4 as obd0 for 90-93 ls/gs, and pr4 for obd2 for 96-99 Mar 23, 2005 · I'm not an expert but I thought that the Hondata web site shows a PR3 ECU as a VTEC ECU but is OBD0. from Canada Jan 4, 2009 · PR4 obd0 ecu? Jump to Latest 2. run an ls obd0 pr4 with one wire vtec it is one of the easiest ecu’s to wire in for a vtec motor and many programs support it for tuning. TE will do most all of your obd0 non-vtec ecu's. Could that be the problem? If so, I would like to know so I can go ahead and order the OBD0 to OBD1 jumper cable. Jan 7, 2004 · Here's an incomplete pinout for an Integra ECU: Pinout PR4 It does not have the location of the "Purge Gas Cut-Off Selenoid Valve". He has a '91 Integra with the obd0-obd1 wiring harness for his AEM EMS. 37820-P72-A01. I am running an obd1 pr4 ecu also. but in your case the best ecu would be a obd1 p75. P75 would probably be the best basemap to go with, as a p75 ecu has been tested and proven to work with our cars. Jan 2, 2010 · Chipped OBD0 Honda Acura ECU Computer PM6 PR4:eBay Motors (item 160358918357 end time Jan-25-10 15:48:51 PST) he isnt an idiot either based on the description. OBD0 PM6 Si Ecu Pinout 88-91 Civic Si. I see that the ecu doesnt have a knock sensor and neither does he engine so that eliminates that wire. The obd1 ECU’s need the latching IC, resistor and jumper installed as well as the ROM. i don't think so. Customer: I have a 88 Crx that has a b18b1 in it and is ran off an obd0 pr4 ecu and it if flashing a code 69. eekay_mushi New Member. him being in canada saves on border fees and stuff to. I have run both in my car for at least two months, and on an engine sim for a minimum of 24 hours. My question: Its throwing 2 cels code 6 for coolant temp sensor (fixed last night) and a code 17 vss. Melt's 2000 GSR Melt's Auto to 5-Speed Build and Swap Thread. P72) are available over more than one generation (e. This Chip is for the Stock or Swapped Integra B18b NON-VTEC DOHC Motor in to 1988 to 2000 Civic, Del sol, Integra, Prelude Using obd1 VTEC or Non-Vtec ECU Such as P28 P72 P08 P30 P61, P91, P05, P06, P75, PR4 1996 to 2000 civic integra you must use the Obd2 to Obd1 step down harness and the chipped / Socketed obd1 ecu to use this chip This Tuned Chip for B18B Non-Vtec engine, this chip Has the Jun 28, 2007 · Well what programs you can use all depends on what ecu you are tuning. You just need a chippable OBD1 ECU. And this should allow for a more accurate search when using the search function. any one wanna chime in. Dec 10, 2004 · wow we have a b20b in out cars now. so then i trashed that n bought a p75 obd1 ecu. 1K views 4 replies 2 participants last post by cudaeh Dec 30, 2008 Aug 12, 2008 · It has a vtecfrog. top of page. OBDI and OBDII), therefore it is important to identify the ECU connectors as well as the ECU code. ) Now the OBD2 ECU pictured is version "a". This will require removing the old capacitors and soldering in the new capacitors. Also the ecu has a chip on it w/a sticker with the Mugen legend (not mugen logo). Should i change ecu? Ive heard P75 are the best for b20 ECU OBD0 to OBD1 Conversion Jumper Harness For 1988-1991 Honda Civic 1. Pre-Owned. The middle 3 digits are the main identifier of the ECU and used in the table above, first column, ECU Code. Plz help! Mar 29, 2003 · Here are all the ECU's found in Integras: P61 92-93 OBD1 GSR P72 94-95 OBD1 GSR P72 96-00 OBD2 GSR P73 96-00 OBD2 ITR P74/75 92-95 OBD1 LS/RS P75 96-00 OBD2 LS/RS PG6 88-89 OBD0 (all models) PR4 90-91 OBD0 LS/GS PR4 92-93 OBD1 LS/GS Jul 28, 2003 · The number on the side of my ECU is 37820-PR4-A02. PM7, PM6, PM2 (I've never ever seen one, not even on the internet), and PR4 (OBD0). OBD1 ECU's only have three receptacles while OBD2 ECU's have four. All Honda ECUs have a part number which is located on the side of the ECU and inside the ECU on the connector. This is a list of suitable ECUs by engine type, listed in order of ECU preference. You apparantly have the OBD1 PR4 ecu since it doesnt fit your lude with B20A5 engine. I have a 92 civic cx and I dropped a 96 LS into it and used the PR4 ecu and it started up with no CEL and it runs good. you will have to move fan switch wiring from back of block to thermostat housing. Nov 13, 2024 · OBD1 PR4 ECU's $150 (37820-PR4-A11, 37820-PR4-A61, 37820-PR4-L11, 37820-PR4-L61) (NOT OBD0, We are only purchasing OBD1 PR4 ECU's) OBD1 P75 ECU's (37820-P75-A01, 37820-P75-A51) $160 OBD1 P72 ECU's (37820-P72-A01) $230 (USDM Only, we do not need EDM/JDM variants) Click here to view our technical FAQ/Article on ecu tuning. Feb 22, 2005 · obd0 - how to get VTEC activation with your ecu! 1-wire vtec, 2 ways to do it: 1. USDM Vtec: P28, P72, P61 USDM Non-Vtec: P75, PR4, P05, P06 4 days ago · Post subject: Re: obd1 pr4 ecu into accord (f22a4) Posted: Mon Apr 20, 2009 11:05 am . Nov 8, 2006 · I'm gonna choke the kid i bought this thing off of Yup sure enough two black plugs and one yellowish. It's like me plugging in my PR4 ECU. This conversion works for stock ecu’s too meaning it does not need a re-programming job to become a manual ecu. Thread starter stolle; Start date Dec 6, 2004; Prev. not really lean but like 15. converted the car and motor to obd1. Feb 13, 2007 · Could it be the ecu? I'm using a OBD0 ecu with a OBD1 engine. Advantage - get to Oct 20, 2009 · a chipped ecu! in my case i used a obd0 chipped pr4 ecu! as you can see my rom chip is a 27SF512 they are rewriteable 100X i think they also work on obd1 ecu's as well you can get them just about anywhere and theyre pretty cheap! Aug 24, 2004 · i have a JDM shit conversion harness and a PR4 ecu from a 93 teggythe car is a 90 2. Technical Information OBDI ECU Reference. Refering back to my original post, I said I would like to offer a cheaper alternative for mild builds. seems a little high. the PR4 is obd0 . ) this one has a factory rom. (You can use one of our DIY chip kits) We do not recommend you attempt any ecu hardware modifications without circuit board soldering experience! If you would rather be safe, you should consider our ecu chipping services. I got this ECU from a 90-91 Integra and the ECU itself has three plugs. Most OBD1 Civic / Integra ECU's are chippable due to the fact that they use similar ECU boards. Oct 9, 2024 · 92-95 Honda - Acura - Civic - OBD1 PCM ECU P28 P30 P61 P72 PR4 P05 P06 - Cap Kit. Expect to pay around $500 for a This Chip is for the Swapped D15, D16 Non- VTEC SOHC Motor in to 1988 to 2000 Civic, Crx, Del sol, Using The OBD1 P06, P05, PR4, P75 P27, & P29 ECUOR If you have the OBD1 Vtec Ecu Such as P28 P72 P08 P30 P61 & P91 and its Socketed, Then you can you can also use this Base Map chip on that ECU If This is a Swap Motor Going in to 1996 to 2000 Civic, Delsol, you must use the OBD2 to OBD1 Mar 14, 2005 · Unfortunately I get a solid check engine light even when I snip the little wire to set the ecu back to stock. Dec 23, 2008 · You should look to find another ECU. We are proud to offer a huge selection of remanufactured Honda and Acura ECU's, PCM's, and TCU's. Dec 10, 2004 · USDM PR4-A11 Integra B18A GS DOHC B18 non-vtec 5spd OBD1 235 Oz DM PR4-Q61 Integra B18A GS DOHC OBD1 236 Brazil P30-G00 EG6 B16A2 DOHC Vtec OBD1 237 JDM P08-001 D15B SOHC Vtec OBD1 238 EDM P04-G00 D15B2 SOHC OBD1 240 JDM P30-J00 Civic B16A DOHC Vtec (square ECU) Usually already ready for a chip OBD1 243 JDM P08-010/911 D15B SOHC Vtec OBD1 244 4 days ago · Honda Acura OBD1 ECU Socket / Chipping KIT OBD1 P28, P30, P61, P91,P72, P08 vtec Ecu & P06, P05, PR4, P27, P29,P74 P75 Non vtec ad vertisement by HAmodsDOTcom Ad vertisement from shop HAmodsDOTcom HAmodsDOTcom From shop HAmodsDOTcom Feb 21, 2015 · The pr4 is the correct ecu for a b18 but is an obd0 ecu meaning someone put an obd0 distributor on your b18b1. A spreadsheet that provides detailed ECU pinout information for various Honda vehicle models. no problems here with it. By immersing oneself in the intricacies of the PR4 ECU wiring scheme, enthusiasts can gain a newfound appreciation for the precision engineering May 2, 2012 · B18a1 Head (PR4-3) (with a 92' stamped on it) (non-vtec) I'm wondering what ecu I need for this set up, I prefer it to be ODB1 (not unless there is a good reason to stick with ODB0), and I plan on chipping it myself (unless I can get a chipped one for not much more. The OBD1 PR4 can be chipped with hondata, the OBD0 can NOT. jdmshit. Also anyone who has a catback exhaust for an 89 CRX SI i would like to buy it. PR3-J00 – One of the earliest Integra DA models, the 1992 JDM Acura Integra used a DOHC engine. If you need a chipped ECU with a base map to run your car correctly, PM me. The car runs and idles smoothly but will not rev any higher than 4k. it wont start. anyways there isn't alot of difference in the fuel concuption of the engines. as it must be manual ecu if im not mistaking? Apr 22, 2012 · Obd0 Chipped Pr4 ecu. These are the ECUs which Hondata currently provides systems for. I then put in my old LS (PR4 obd0) ECU since it is the only spare obd0 one I have right now and it cranked right over with no code. @#(P&$@#**O@%U$# Anyone want an OBD0 PR4 and a P09 Ecu? Yup, maybe third times a charm I hate ebay and i hate liars and i hate people from wherever that kid was from in Illinois Dec 2, 2003 · Originally posted by emericazzz@Dec 2 2003, 11:03 PM ok , if this is the stock hf harness, you will need to convert dual point to mpfi, assuming you have done this already (hasport harness if you havnt) then find and obd0 distributor for your obd1 motor, then you should ABSOLUTELY all obd0, again assuming you have obd0 ecu, and not throw codes because of some stupid obd conflict, a 91 starter Secondary intake runner operation will be lost if a P72 ECU is not used. Nov 1, 2011 · It has a blown B18A1 engine in it right now. possibly lengthen OBD1 ECU VTEC Conversion Kit (Uberdata, Crome, Hondata & Neptune compatible) Convert your non-vtec ECU (PR4/P05/P06/P75) to a VTEC ECU This VTEC kit runs identical to any P28 VTEC ECU Notes: - Includes all components to convert your USDM OBD1 non-Vtec ECU to control Vtec (PR4/P05/P06/P75) - Please SPECIFY and know what board type you are converting Not familiar with what a chipped ecu is or any of these terms?: Click here to view our technical FAQ/Article on ecu tuning. i removed the rom, put in a socket and tuned a chip w/ crome and it went into limp mode. Original way was to use an automatic obd0 ecu (90-91) like the ps9 from the civic EX or just convert a pm6 to automatic. Registered VIP Mar 13, 2025 · I tested pins b15 and b17 from the ECU and I got ~10v which is good. 88 - 89 Prelude ECU Codes: For the 90-91 Dec 29, 2008 · 90 B18A in to 92 civic ecu help!! Jump to Latest 3. Compatible ecus: Obd1 p06, p05, p75, pr4 Aug 22, 2004 · well i have a b18b converted to OBD1 but i have a pr4 ls obd1 ecu in it and my boy has a b18b but it is OBD1 already but he has a p75 OBD1 ecu in it and he pulls on me so there must be somethign wrong he says i need the p75 ecu and i thnk so to but i wana make sure ?and he has a ek coupe i ahve a ek hatch with a clutch kit and 12lbs act Mar 26, 2009 · PR4 obd1 ecu work same as P75 obd1 ????? Thread starter eekay_mushi; Start date Mar 26, 2009; eekay_mushi New Member. 5 to 1 or something like that. Here is how to identify your ECU. what code is it flashing and what should I replace? Jan 16, 2012 · Any OBD1 P06, P05, P28, P75, PR4, P30, or P72 ECU will run your car, but to have your car run well, you'll have to get those ECU's chipped and programmed (with the exception of PR4 and P75 since they are LS ECU's). ShakeThisEf · Registered. the obd1 is from a 92-93 integra from what i read. Crx Si, 90-91 Integra. According to the helms manual, my ECU is dead. Since the civic has a cable speedo is the pr4 ecu always going to throw a vss code or is there a way to fix it? Sep 22, 2008 · ok ive searched and learned alot more that i knew about this conversion. The part number consists of three components: Honda's part number for ECU, which is always 37820; Three characters (which are loosely related to the model of car/engine). If you are going to be using a P06, Pr4, or P75 ECU, you must also perform a non-vtec to vtec ECU conversion with the Hondata S300 installation to properly operate a VTEC engine. Axles from a 90-93 teg. g. Shift linkage and mounts from hasport. the p28 ecu doesn't show much info for the 3g, but the p06 was also used by a few. Aug 14, 2005 · yeah when i did the obd1 conversion i went with a pr4 at first but then for some reason it made my idle fluctuate. Turboedit has an option to select to enable this feature. It is for a d15b7 94 civic. Joined: Mon Oct 31, 2005 4:53 pm Posts: 369 Location: Wisconsin y0! speedjunkie OBD1 ECU Chipping Service P05, P06, P28, P30, P72, P75, PR4, p06 vtec conversions, p05 vtec conversions Advanced Ignition - ECU Chipping Advanced Ignition Free Shipping on all orders in the US! Aug 5, 2007 · Pulled up the carpet to check the ECU last night just to see what was in there, and its a PR4. If you just want to have the ability to have your car chipped and tuned, you willl need to this harness to run an OBD1 ECU (PR4, P28, or P06). Feb 7, 2005 · ECU: PR4 The B18A1 is out of 90-91 integras. Both of them are OBD1, but you will need to get them chipped in order to run the B20 engine. (must remove dust boot from inner spidle for this to work)be sure to run obd0 b18a1 injectors. 0si b20a5. Ballade September 4, 2006, 3:07am Nov 16, 2012 · trying to tie the narrow band signal wire from the wide band o2 to the ecu so it can read the a/f like normal. May 25, 2004 · PR4 Integra ECU manual, chipped to run a p28 based ROM (w/ datalogging code) with stock p06 imported fuel and ignition maps. He also has a 1996 Integra RS with a B18B1 in it. just need to know if this sounds right and which numbers on the ecu represents the transmission. To do this correctly, some/many of the sensors would also have to be used, including the 1 wire o2. not terribly bad. After looking at the pinout comparison chart found on g2ic. OBD0 Distributor from a 90-91 Teg. Free shipping. The PR4 ECU is OBD1 but is non VTEC. This is almost always 37820. Going by phearable. I started getting the code during a compression test. Mar 1, 2016 · Of course this is another OBD0 Honda ECU and will require replacement for your Honda swap. 6 sohc) OBD0 65 USDM/CDM PM6-A09/C00 CRX 90-91 OBD0 71 JDM PW0-000 CRX SiR 89-91 OBD0 76 EDM PW0-X00 CRX SiR 89-91 OBD0 76 EDM PW0-E00 CIVIC 89 Auto ECU’s can be converted to manual eliminating the CEL 19 lock solenoid code if used in a manual vehicle. I'm using Chrome to edit the ROM and import the p06 fuel maps. Kit includes high end capacitors, mostly Panasonic and Nichicon. Feb 23, 2010 · ECU Pinouts PDF. If the ecu is vtec you do not need to convert to non-vtec. It seems, however, that the JDM '89-92 EF8/9 SiR comprises the same pinout as the USDM Integra -- which appears to have the pinout for the aforementioned solenoid at A6. hardwired the ecu connections, using a 94 cx dizzy, obd1 dx injectors and the pr4 ecu. Mapping Output Controls: Mapping out the output controls associated with the PR4 ECU unveils the mechanisms by which the ECU regulates engine components, such as fuel injectors and ignition timing. Note an OBD1 distributor must be used. Joined Mar 22, 2011 · 438 Posts Mar 6, 2025 · OBD1 ECU Full Socket KIT + SST Re-Writable Chip OBD1 P28, P30, P61, P91,P72, P08 vtec Ecu & P06, P05, PR4, P27, P29,P74 P75 Non vtec Honda ad vertisement by HAmodsDOTcom Ad vertisement from shop HAmodsDOTcom HAmodsDOTcom From shop HAmodsDOTcom Jan 4, 2010 · DESPERATE OBD0 PR4 ecu pinout - Honda-Tech if your looking for pinouts & harness diagrams, my best suggestion is to get a haynes manual, from there you can learn all information when it comes to the plug wires in the engine bay. Remember, once an ECU has been socketed and a chip installed the factory ROM number is no longer relevant as the ECU will use the ROM loaded onto the chip rat Dec 1, 2012 · I have two Chipped OBD1 PR4 ECU's. I have the wide band signal tied to the anologe and have that to data log as well, but the long term and short term fuel trim never do anything i suppose its because i dont have a narrow band signal for the ecu to read to make adjustments heres my map if you want to look,, it runs Mar 2, 2008 · The obd2 harness off of the 96 LS motor will plug right into the shock tower harnesses on both sides of the civic engine bay (obd1). The first block is the Honda part number denoting it is an ECU. it turns over and the ck engine light comes The PR4 ECU is OBD0. Sep 26, 2011 · The reason I would not like to offer this is I prefer to not travel the country tuning ecu's. Alternator from a 90-93 teg. For obd0 VTEC ecu's I prefer BRE, specifically PR3 (PW0 isn't street tunable). e. You can buy an OBD0->OBD1 conversion harness for your prelude that will let you use the OBD1 PR4 ecu. honda engines use a little at low rpms and alot at high rpms. Dec 6, 2004 · obd0 ecu chipping. I do not plan on tuning your obd0 ecu for your 400hp B20A5. Now it wont rev passed 4k. This is nice because sometimes you find a bin you want to use but it is based on a different ECU than you are using. 37820-PR4-L11 OE-Spec Remanufactured ECU. Jan 12, 2004 · Honda ECU Part Numbers Decoded Honda ECU part numbers are a series of 3 alphanumeric sections. It is assumed that any non-vtec ECU will only be used in non-vtec applications. from searching, i have found that the pr4 ecu came as an obd0 unit and also as an obd1 unit. Jul 13, 2006 · I have a code 16 flashing on my PR4 (I donk know if OBD0 or OBD1) ECU. Joined: Tue Jul 27, 2004 7:16 am Posts: 464 Location: Puerto Rico Mar 9, 2011 · Right now i have a b20 and a pr4 ecu running it. As similar as they are, the PR3 and PW0 ECU's cannot share programs. Buy It Now. 1; 2; 3; Next. Opens in a new window or tab. Thanks. Then vtec runs off the automatic lockup solenoid pin on the ecu. Its running very rich from what the spark plugs tell me and idles rough sometimes and sometimes not. $99. The car previously had a mini me swap with a chipped p28 with a jumper harness. the pr4 doesn't have vtec controls, or the ability to utilize the iab's. Delve into the intricate web of connections and pathways within the OBD0 PR4 engine control unit (ECU) to unlock its full potential. . I have a few available. Sep 27, 2009 · the best ecu's to use for any tuning purposes are: p06, p28, p30, p72, p75, pr4 for the case of pr4 ecu's: 90-91 ls integra's had obd0 pr4's, 92-93 ls integras had obd1 pr4's. This is supported for Civic, Integra, and Prelude OBD-1 ecu’s. Chipped obd1 ecu vehicle plug & play compatibility : Phearable. OBDI ECU swap. No changes to the harness needed. Both ECU's are Chipped, and have VTEC added. Mar 26, 2010 · thats exactly one of the most important things i am trying to find out. ONLY the obd1 pr4's are tuneable for use in any 92+ honda, the obd0 pr4's are only useable for obd0 hondas and are very rarely used even for those anymore Dec 9, 2004 · get yourself a pr4 ecu obd0, get yourself an obd0 b18a1 dizzy, youll have to go get yourself some si front spindles b/c the hf's WILL NOT WORK. Jump to Latest Follow 1 - 8 of 8 Posts. It has a high ideal at 1100 RPM. Ecus supported by the DIY usdm obd1 chip kit: 92-95 Honda/Acura OBD1 ECUs only. Also, there are some things that you dont want to happen in the process of chipping an ECU like getting a cold solder joint or burning a copper contact on the PCB or having a sliver of solder jump two pins together. in order to make my 89 si able to run with hondata i need a wiring harness from boomslang, a non vtec ecu (obd1) pr4? and what car would a pr4 come out of? and hondata? am i missing the wide band o2 sensor? anything else?. VTEC ecu or not, the basemap chooses whether or not to use it. that ecu will run just a hair rich at idle and will lean out as you reach upper rpms. local guy said 100 to do chip and convert to vtec. I will be posting this in the 3rd gen Upgrade thread at the top of the page for quicker access. And my idle pulse up and down from 1200rpms to 400rpms. Please note that some ECU codes (e. Conversion from OBD1 required (OBD0-OBD1 adapter harness, OBD1 distributor). Vehicles pre-92 & 96-01 vehicles will require a ecu plug conversion harness to use the ecu. PR4 – You’ll be ditching this ECU when planning a LS VTEC conversion in your 1990-1993 Acura Integra LS or GS. The problem is yesterday on his way back from Kansas City his passenger somehow got his foot hung up in the wiring harness and when he pulled back he ripped out a half dozen wires. 99. Jun 8, 2010 · Okay so i have an obd1 pr4, the board is COMPLETELY different than that of another obd1 ecu (like p28. (one of these four is never used. btw there isnt one BEST ecu cuz everyone situation is different. Post subject: Re: Converting OBD0 PR4 ECU from Auto to Manual. What else can I check in the mean time if it's not the Ecu. next you will need 90-93 teg axles and intermediate shaft. I was told you could use the pr4 OBD0 ecu with the OBD1 B18b. Its a 96 engine, we're running a 94 intake Mani OBD0 dizzy and OBD0 PR4 ECU. And just for anyone else that might want one www. Aug 21, 2011 · Here are the ECU codes from the manuals for easier access. P05 P06 P28 P30 P61 P72 PR4. What are the chances a resister, capacitor, or the 74HC373N chip went bad? I must have crossed something by accident because I blew the ECU fuse under the hood Nov 10, 2012 · Just seen in another forum that they actually have a pr4 ecu thats obd1 so there's a obd0 pr4 and a obd1 pr4 ecu. Posted: Fri Jun 25, 2010 8:08 pm . Since you want to go forced induction in the future, you may want to consider getting a P28 ECU since it is very versatile and you will be able to install Hondata on it. I was expecting to see a P75? So I came online this morning and checked out the ECU codes and what car they come in, as well as respected OBD for that ECU. (MAKE SURE YOU BANG OUT THE AREA FOR THE ALTERNATOR CLEARANCE) OBD0 Integra injectors. i may go ahead and just order one from him. Also, PR4 bins work in all the ECU's listed in the last sentence. Aug 28, 2004 · If you want to buy that b18b1 motor and keep it OBD0 just Get a new ECU, PR4 is recommended. May 10, 2003 · That method will only work on obd0 ECU’s. Car Batteries. com obd0 to obd1 conversion harness but the rest of the swaps wiring needs cleaned up. Mastering OBD0 PR4 ECU Connectivity. Deciphering the Inner Workings Nov 8, 2006 · The PR4 ecu can be both OBD0 and OBD1 though, depends on what year it is. Nov 6, 2006 · I am in the process of swapping an OBD0 PR3 B16a into my 91 integra which currently has a B18A1 with an OBD0 PR4 ecu. I´ll post some pics later, maybe you can help me to find out if this is a hondata board or what it is. 6L LOT OF 100 TOBISHA TA8903SN OBD1 OBD2 ECU P28 P06 P75 PR4 P72 P61 P30 vtec IC17 Jan 11, 2013 · PR4 OBD0 Automatic ECU Questions. You need an OBD1 PR4 ecu or an OBD1 P75. Do i need to run the wires for the evap purge power and the evap purge solenoid. are the obd0 ecus normally cheaper ECU Part Numbers. i can solder and i can read. You dont need to be boosting or anything like that to convert. ? All the vaccum plugs are plugged right. I replaced the ignitor, still nothing. I would swap it put for a P75 or P06. Car & Truck Remotes . Simple as that. goodluck Dec 6, 2004 · BTW i am an ecu god soo many ecus so little time to chip them, ecus liusted in order: chipped 1 wire vtec ps9 chipped and datalogged pm6-a09 pm6-a07 pg7 pm6-a09 obd0 pr4 obd0 pr4 obd1 pr4 chipped p28 Apr 29, 2009 · hey guys, well i got rid of my ls for my new-old single cam! well i drive a '90 civic hb. 5L 1. Plz help! Aug 26, 2019 · The accepted Honda ECU’s to use with the S300 are: P06, PR4, P28, P30, P61, P72, and P75. Find many great new & used options and get the best deals for 1993 Acura Integra Pr4-a11 ECU Obd1 DOHC LS RS GS Engine Computer B18a1 VTEC B20 at the best online prices at eBay! Free shipping for many products! HAmods are Tuning Cars for Many years, We Have Many Tuned Base Map Available for Turbo and all Motor Setup for B series, D series, H Series, F series, for OBD1 ECU's, Harnesses, and more from Hondata, Neptune, and CROME to Tune Your Honda Acura Motors using obd1 Ecu Aug 29, 2010 · You can use many obd1 ecus for this like p05 p06 p07 p08 p28 p30 p61 p72 p75 and the 92-93 obd1 pr4. How to socket/chip an obd1 ecu video. Jan 6, 2004 · ECU Pinouts. And I'm with Jump, there is no way that thing can be better. Thread starter posol; Start date Jan 6, 2004; Replies 2 Views 294K Tags ecu wiring All OBD0, OBD1, and OBD2 as well as DPFI to MPFI conversion charts Jun 17, 2004 · I am helping a friend. You will need to also chip your ecu with a vtec basemap for the ecu to control vtec. com, I have gathered the following information and need some comfirmation of whether or not I have my facts straight. FORMAT: xxxxx-xxx-xxx. g P72 Aug 22, 2004 · couldnt u just use a obd0-obd1 covnersion harness? i have a project civic hatchback a 1990 obd0 and a shop put in a 93 sohc vtec motor in it and converted it to obd1 using a jumper harness, one end plugs into ur stock wiring the other end plugs into ur obd1 ecu, the only things u wouldnt have to hook up is probably the vtec wiring, the harness i got came with 8 extra wires to wire up half of Find many great new & used options and get the best deals for Acura Integra Honda Obd1 37820-pr4-a61 Pr4 ECU at the best online prices at eBay! Free shipping for many products! This Chip is for the Swapped or Stock CRV B20b & B20z JDM Non-Vtec DOHC Motor in to 1988 to 2000 Civic, Del sol, Integra & CRV Using obd1 VTEC or Non-VTEC ecu such as OBD1 P28, P30, P61, P91,P72, P08, P06, P05, PR4, P27, P29,P74 P75 1996 to 2000 civic integra you must use the Obd2 to Obd1 step down harness and the chipped / Socketed obd1 ecu to use this chip This Tuned Chip for B20b there seems to be a bit of confusion on this topic. These references are from ECU's that we have logged for your assistance and for ECU identification purposes only. If you go obd1 Crome Free would be my choice (I bought Crome Pro, more features). I would go with P61. The document lists pin numbers, corresponding functions, and applies them to different ECU models such as Non-OBD, OBD-1, and OBD-2 systems. Unfortunately that is really all the interchangeability that happens in the OBD0 world. OBD1 ECU Pinout Civic 92-95 Integra. Very good acceleration but a 1 second roughness when WOT. This Honda ECU is also found in the same Mar 21, 2005 · The number on the side of my ECU is 37820-PR4-A02. With a chipped ECU, it doesnt really matter what ecu it is, you just need to get the correct basemap burned to the chip. stolle New Member. Dec 23, 2014 · OBD0 53 USDM PK2-6660 Prelude 90-91 OBD0 54 Oz DM PR4-Q02 90-91 Integra LS/GS B18a OBD0 ?? USDM PR4-A02 90 Integra LS B18a OBD0 58 JDM PR3-901 89-91 B16A EF8/9 OBD0 59 JDM PR5-003 90-91 Integra ZXi (1. One ecu comes with an ebay chip that came with it I believe it was for a DOHC VTEC engine, I don't remember which. Both should work. Jul 22, 2004 · Your wiring harness is already OBD1 compliant. The extra wires may be from a nearby sensor, engine coolat temp (ect) is in the general vicinity. To use a Hondata system it is required that an OBDI ECU is used. Technical Information OBDI Engine Reference. Explore the intricacies of its circuitry, unraveling the pathways that dictate engine performance and responsiveness. How to socket/chip an obd1 ecu picture. Then use an obd1 p75 or PR4 ECU to run it. What he wants to do is exchange all the sensors/accessories from the A1 and install them onto the B1 hoping that he can then drop the B1 into the 91 chassis and still use the same ECU and wiring harness originally installed on the 91 PR4 chassis. How do I tell if it is an OBD1 or what? I was under the impression that OBD1 ECUs had three plugs on the connectors and two for the OBD0. May 27, 2008 · PG6 88-89 OBD0 (all models) PR4 90-91 OBD0 LS/GS PR4 92-93 OBD1 LS/GS How to tell apart OBD1, OBD2a, and OBD2b ECU's: How to tell them apart by looking at the clips: Look on the back of the ECU. Aug 25, 2008 · My friend has a ls/vtec on his crx, we open yestarday the ecu (pr4) and I saw a board that does not look oem, is mounted on the top of the ecu. 37820-PR4-L11 OE-Spec Sep 3, 2006 · obd0 b16 ecu’s are garbage. Differential control will be lost. wanna know some prices and the difficulty to do this 90-91 Acura Integra B18A1 auto engine computer ecu ecm obd0 37820-PR4-A52. even after reseeting the ecu. The following ECU's are all compatible with popular tuning software like Crome, Neptune, and Hondata:USDM OBD1 ECU's: P05 92-95 Civic CX P06 92-95 Civic DX/LX P28 92-95 Civic EX/Si P30 93-95 Del Sol VTEC DOHC PR4 92-93 Integ Dec 3, 2009 · i have a pr4 ecu and need it to be chipped for vtec. I have resoldered every connection a couple times and still no luck. 3K views 0 replies 1 participant last post by dirtyjersDAteg Jan 5, 2009 Aug 13, 2012 · As the title says, I have a 90 CRX with a LS swap in it and its running in limp mode. Go. Jump to Latest Follow 4K views 8 replies Apr 8, 2003 · I am doing an obd2 b18b1 engine swap in my 1992 civic and I was wondering what wires need to be added or swapped. but i need to be sure im understanding all of this. ) I've been told I need a P74 from some people, and then a PR4 from other people. ctujefucczdinltvzoqkrzztlbpnyfbsytakgallwxmcescqrruwxsmpjxvicfygqqouivbqetar