P2270 code silverado. 3l p0138, p2271 codes help.

P2270 code silverado El código P2270 es común en: Audi, BMW, Ford Escape, Ford Explorer, Ford F-150, Ford Fusion, Ford Mustang, Ford Taurus, GMC Sierra, Honda Accord, Honda Odyssey, Hyundai Elantra, Mercedes-Benz, MINI Cooper, Volkswagen y otras marcas. Mar 29, 2015 · Here's some Information regarding Both of these 2-Trouble Codes P2270 & P2272,. My car is sending codes p2270 and p2271 simultaneously. The diagnostic trouble code P2270 on BRZ and other car models is not a severe case. Exhaust Leak (Likely) Check for an Feb 20, 2015 · Used my Intune to read code. Mar 23, 2013 · Jan 27, 2017 • 2008 Chevrolet Silverado. I have a 1999 Chevy May 28, 2022 · To diagnose the P2270 GMC code, it typically requires 1. a P2272 code on Chevy Silverado or your respective car model means there’s too much air or too The cost to diagnose the P2270 2014 Chevrolet Silverado code is 1. Just some background as not sure if this all might be related. Jun 7, 2022 · Chevy Silverado P2271 Causes + Diagnosis. This means that the ECM has detected an issue with how much oxygen is being measured by this particular O2 sensor. Feb 6, 2022 · Common Mistakes When Diagnosing The P2270 Code. This came back as O2 sensor was running rich and running lean. back n forth last 2 08 silverado 4. The Causes for these 2-Trouble Codes may Include: Exhaust Leak near O2 Sensor Contaminated or Failed HO2S2 (Sensor 2) HO2S2 Wiring/Circuit Problem Loose installation of HO2S2 Fuel Pressure Incorrect Faulty Fuel Injector Engine Coolant How to fix a P2270 engine code: O2 Sensor Signal Stuck Lean Bank 1 Sensor 2A P2270 Code is set when the Bank-1 upstream Sensor-2 oxygen sensor reports a lean May 28, 2022 · Code P2270 2018 Chevrolet Silverado Description. O2 Sensor Signal Stuck. Oct 1, 2015 · This P2270 trouble code refers to the post-catalytic converter O2 (oxygen) sensor on bank #1, sensor #2. The technician might fail to clear ECM codes after the P2270 codes are fixed. Oct 6, 2017 · 2004 - 2008 Ford F150 - P0054 code - One of our work trucks had had multiple codes (P0054, P2270, P0300 and P0306). There are a few potential causes of a code P2270, but by far the most common cause of a code P2270 is a faulty oxygen sensor. Everything there cost around $1K, from my past experience. I had a muffler shop replace Cat and cleared code. 2011 CHEVY AVEO; P0137 P2270 1999 Chevy silverado Trouble codes P0101,P0137,P0157,P0300:( HI everyone! I was hoping someone could help me. 1 helpful. The signal from the oxygen sensor upstream of the catalytic converter does not agree with the lean condition indicated by the downstream oxygen sensor. It means that the oxygen sensor located on bank 1 behind the catalytic converter is continuously sending voltage that indicates a lean air/fuel mixture. One of the symptoms of P2272 is high fuel consumption. If you have an extended warranty plan, make sure to use it. make sure they are plugged in tight Definition of Diagnostic Trouble Code P2270 Category: Jan 28, 2022 · A P2271 code refers to the post-catalytic converter oxygen sensor on bank 1, sensor 2, which is responsible for monitoring your catalytic converter performance. All was good for about a month and check engine light came on with same code. To diagnose the P2270 2014 Chevrolet Silverado code, it typically requires 1. you may like to track and rectify the root cause of P2270 on the Chevy Note: The definition of code P2272 may differ according to the vehicle manufacturer. Mar 24, 2021 · P2270 is a general DTC trouble code, which means it has the same meaning for the Chevy Silverado as it would any other vehicle. Here’s how Jul 13, 2021 · HO2S Bank 1 Sensor 2: P2270, P013E, P013A, P2271. I have a 2008 Silverado 6. 2L V6 4x2 (146,482 miles) Problem: Last week, I had a check engine light illuminate. it ran fine but the check engine light was still on. Feb 12, 2023 · If there’s a third sensor causing problems, the trouble code would be different. P2272 is an automobile fault code that triggers the engine light to turn on or the service engine soon warning light to appear. Here’s how the swap test is done: Clear the DTC codes with your scanner. Customer: 2008 CHEVY SILVERADO 5. Mar 15, 2017 · DTC P2270 is defined as “O2 Sensor Signal Biased or Stuck Lean B1S2. 2. How much does it cost to fix the P2270 code? The repair cost of a P2270 code depends entirely on how quickly you take your vehicle to a mechanic after the light comes on. P2270 2017 Chevrolet Silverado Code - HO2S Signal Stuck Lean Bank 1 Sensor 2 When diagnosing the P2272 code, start by checking the oxygen sensor signal stuck lean on Bank 2, Sensor 2 for potential issues. Any ideas on what I should be looking for or checking would be appreciated. Specifically, it indicates that the 2 days ago · I don’t see any old threads asking specifically talking about just this P2270 code, it always seems like they had a larger issue and that the P2270 code was supplemental amongst other more important issues. Hey everyone, just a quick video on a diagnostic i did on a Chevy Silverado regarding lean rear O2 sensors. May 29, 2022 · 2. 42c6 The cost to diagnose the P2270 2018 Chevrolet Silverado code is 1. Apr 19, 2021 · P2272 in the Chevy Silverado is a general diagnostic trouble code. The P2271: HO2S Sensor Stuck Rich. Comes back as P2270: O2 sensor Signal Biased/Stuck Lean. Search Fixya. Jan 9, 2011 · I hardly drove my past trucks very often (3000 to 4000 annually) and my new truck is no different. O2 Sensor Signal Stuck Lean Bank 1 Sensor 2. : 18-NA-009 Parts Information Causal Part Description Part Number Qty x HOSE, P/S GR INL 22912855 1 N/A SENSOR, HTD OXY (PRE- Nov 19, 2024 · Hello, I have a 08 Silverado 1500, 4. 3 and it has a rough idle and from time to time when it starts up after 30 to The codes I have are p0121 p2270 and pp2271. What Does P2270 Code Mean On Chevy Silverado? To elaborate, the P2270 Code on a Chevy Silverado means that the oxygen sensor in bank 1 sensor 2 has too much oxygen in the exhaust stream. I've had it since 8/2010 from 11000 miles. 2014. 2012 chevy cruze eco, No The P2270 diagnostic trouble code (DTC) for a 2015 Chevrolet Silverado indicates that the oxygen sensor (O2) signal for Bank 1 Sensor 2 is stuck lean. 3/6L80e P2270 Code Definition. 7. Brand: Model: Model Year: VIN: Engine: Transmission: from to from to Buick GM Passenger Cars and Trucks 2000 2022 — — Gasoline Engines Only — Cadillac Chevrolet GMC Involved Region or Country North America, Europe, Uzbekistan, Russia, Middle East Check engine light is on I'm pulling code P0137, P0138, P2270. Posted by Anonymous on Sep 03, 2013. co 👈=====Engine Code P2271 Saving Repair Parts Apr 6, 2017 · 99 Silverado LS1500 5. 51,910 Satisfied Page 2 April, 2019 Bulletin No. May 28, 2022 · 8. P2270 is an OBD-II generic code for the O2 sensor signal stuck lean on bank 1 sensor 2 to the engine control module (ECM). The P2270 fault code can be caused by a faulty Heated Oxygen Bank 1 Sensor 2, an open or shorted harness, poor electrical connection, low or high fuel system pressure, fuel contamination, faulty fuel injectors, exhaust gas leaks, or engine vacuum leaks. The truck was running crap. Shows codes P0171 and P2270, No blinking or flashing, just happened. The converters, especially bank 1, have almost no oxygen storage capacity. But, there are two likely causes that you can check before jumping straight to an oxygen sensor. 0 L K. Sensor is bank 2 sensor 2. When the oxygen sensor in the car fails to provide the expected feedback to the PCM, the code is activated. Feb 12, 2023 · If your code scanner has given you the P2270 code, it means there is a problem with the downstream oxygen sensor in most cases. co 👈=====Engine Code P2270 Saving Repair Parts In this section, we will take an in-depth look at the definition and significance of the P2270 code and the role of the oxygen sensor in your vehicle’s engine. This is due to a defective sensor or an exhaust leak in front of the sensor in most cases. The oxygen sensor simply gets stuck in one position and can’t adjust anymore, leading to faulty readings. What the P2270 code means. The cost to diagnose the P2270 2016 Chevrolet Silverado code is 1. 3 HAS CODES P0327 / P0121 / P2270 / P0137 ANY HELP WOULD BE GREATLY APPRECIATED. now I'm trying to trouble shoot and without just tossing in 2 new O2 sensors is there any tests I should be doing first?and anything that I should check. DTC P0133, P0134, P0140, P1134, P2270, P2271, P2A00, or P2A01 are Type B DTCs. Oct 12, 2013 · And it's backthis time p2270 o2 sensor signal biased/stuck lean. It can also signify broken or damaged wiring, failing PCM or lean running condition. What are the possible causes of the P015D code in a Chevrolet? Diagnose OBD2 code P2270—O2 Sensor Signal Stuck Lean in Bank 1 Sensor 2. 0. code P2270. Less than 100 miles later the check Aug 16, 2016 · 2008 1500 Silverado 5. Another prominent cause of code P2270 and P2272 is vacuum leaks. Had the ECM replaced last nov. The Heated Oxygen Sensors (HO2S) are used for fuel control and catalyst monitoring. P2270 is a generic OBD-II diagnostic trouble code indicating that the oxygen (O2) sensor in Bank 1, Sensor 2 position is reporting a lean condition consistently. Put a new coil in and the truck runs normally again and all the codes stayed away except Jun 16, 2022 · I have a 2014 Silverado 1500 LT with 170K miles. Comment réparer le code P2270. Aug 12, 2017 · Here's my codes I scanned,p2273 bank 2 sensor 2 signal stuck rich,p0158 bank 2 sensor 2 high voltage,p014A fuel air metering,p0138 bank 1 sensor 2 high voltage. It currently has around 13500 and the check engine light came on. I have a edge evo tuner and can clear them but after a week or so of driving they come back, ususally the P2270, then P2271 and P0138 after those. Each HO2S compares the oxygen content of the surrounding air with the oxygen content of the exhaust stream. O2 bank 1 sensor 2 signal May 16, 2014 · So I have these 3 returning codes on my 08' Silverado 1500 6. What are the Common Causes of the P2272 Code? A faulty sensor (oxygen sensor, mass airflow sensor, etc. 9. Both of these codes have to do with the same downstream oxygen sensor, which means that the sensor itself is probably faulty. This means the sensor has detected less fuel than oxygen in the exhaust than expected, which isn’t normal. How much does it cost to fix a P2270 code? The cost of fixing a P2270 code can vary depending on the underlying cause. any Ideas ? 2012 chevy cruze p0106, p0171, p0111 and p2270 Feb 27, 2014 · So I have a check engine light on on my dash so I hook up my diablo intune and read the code. A P2270 is related to and may be accompanied by the following codes: P0171, P0174, P2269, P0449. Hope you get some good information out of this vi More About Diagnostic Codes P2270, P2271, P2272, P2273, P2274, P2275, P2276, and P2277. 3. I replaced downstream O2 sensor and cleared code. 3l with 210,000 mi. To diagnose the P2270 Chevrolet code, it typically requires 1. Each one of these codes indicates that a signal is stuck or biased toward either rich or lean. It covers the P0420 code's meaning, symptoms, causes, and possible solutions. A rich running condition, faulty O2 sensor, and wiring problems can trigger diagnostic trouble code P2273. A few days later it came back but with one code only, P2272. Cleared it again for good measure and it came back again with code P2273. I'll update my findings again Sent from AutoGuide. The code signifies a problem with an oxygen sensor behind the catalytic converter. Wiggins | ASE Certified Technician, Associates Degree in Automotive Technology, 20+ years in the trade Code P2272 is a code indicating the O2 sensor post catalyst on bank 2 is staying lean all the time. This will cause the vehicle to fail emission testing. I recently did some good romping on the truck as a part of the tuning process I enjoyed with DiabLew. After researching online, it appears this code is for O2 sensor Bank 1, Sensor 2. Allow the engine to reach operating temperature. Learn about possible causes and find step-by-step solutions to fix the issue. 2012 Chevrolet express 6. com App Mar 22, 2021 · P2270 Symptoms. A week ago I was driving about 50mph and my engine light came on. Any accelerator input will stop the tests, causing the sequence to start over. 3 liter engine. check engine light out for about a 2008 CHEVY SILVERADO 5. Is it possible for the worn-out converters to be causing P2270 and P2272? May 28, 2022 · To diagnose the P2270 2016 Chevrolet Silverado code, it typically requires 1. HO2S Bank 2 Sensor 2: P2272, P014A, P013C, P2273. Check engine light onDiagnosed. This means that the O2 sensor located downstream of the catalytic converter on the side of the engine where cylinder 1 is located is reporting a consistently lean air-fuel mixture. P2270 code stands for “O2 Sensor Signal Stuck Lean Bank 1 Sensor 2. ) Vacuum leak; Fuel delivery issues; Exhaust leak and/or Oxygen Sensor Codes Set This bulletin replaces PIP4925B. It means that the "bank 2" downstream oxygen sensor (behind the catalytic converter) is continuously sending voltage that indicates a lean air/fuel mixture. Initial diagnosis may display any of these misfire and/or fuel trim related codes: • P0300-P0308 • P050D • P0171 • P0172 • P0174 • P0175 • P2099 • P219A • P219B Service Procedure If during repair an injector replacement is required, it will be necessary to refer to the parts catalog to ensure =====Claim your FREE engine code eraser 👉 https://free. 1 and “sensor 2” indicates the downstream oxygen sensor on Bank 1. I have a 2008 Chevy Silverado extended cab with 5. It’ll be on or right after the exhaust manifold. A Check Engine Light accompanies it; you need an OBD-II scanner to read the code. P2270 - O2 SENSOR SIGNAL BIASED / STUCK LEAN BANK 1 SENSOR 2. Definition and Significance. The P0138: HO2S Sensor Circuit High Voltage. that intermittently sets P2271 and P2273 HO2S codes ( post O2's). This code might register if your powertrain control module (PCM) receives a signal from your oxygen sensor indicating an incorrect air-fuel ratio in the catalytic converter. 2009 chevy impla 3. 0L. Checking the wiring harness going to the oxygen sensor for damage and the exhaust for leaks. Most auto repair shops charge between $75 and $150 per hour. ” This involves clearing the codes and seeing if the code “jumps” to bank 1. But while that’s the most likely cause for a code P2270, it’s not the only one. After a little research I'm thinking that the down stream O2 sensor on the drivers side was messing with the MAF? Sound right? I'm hoping this code was throwing off the system and causing the other code. 8 liter dtc p2270. May 28, 2022 · To diagnose the P2270 2015 Chevrolet Silverado code, it typically requires 1. Nov 7, 2023 · The code P2270: O2 Sensor Signal Stuck Lean (Bank 1, Sensor 2) indicates a problem with the oxygen sensor on Bank 1, Sensor 2, specifically that the sensor’s signal is consistently leaning toward a lean mixture. P2270 trouble code definition. 3L engine I have a 2013 GMC Sierra 1500 with 5. This post-cat sensor is used for monitoring the effi Sep 10, 2020 · The truck was due for an oil change today. ” In the definition of P2270, Bank 1 indicates the side of the engine that contains the cylinder number. Browse Categories P2271 trouble code definition. P2272: Uncovering The Symptoms Of This Auto Fault Code. P1174 refers to a Fuel Trim Cylinder Balance Bank 1 Condition, and P2272 refers to a heated oxygen sensor stuck lean with the Bank 2 Oxygen Sensor 2 condition. If your Silverado has P2271, the most likely cause is a bad oxygen sensor. What is the possible cause? - Chevrolet 2008 Silverado question. P2273 code definition The P2273 diagnostic trouble code is an indication that the Bank 2 Sensor 2 oxygen (O2) sensor signal is stuck on rich. nonda. A lot of mechanics simply restore the O2 sensor before repairing the leakages in the exhaust. Clicking this will make more experts see the question GMC Sierra 1500 P2271 & P2273 5. Lean Bank1 Sensor2] Solid. Sep 30, 2019 · So 2 weeks ago I had a check engine light on, a local shop replaced Bank 1 sensor 2 o2 sensor, had a code p2270. Table Mar 26, 2024 · 2000-2013Chevrolet Factory Service Bulletin OBDII Code P0300 2014 Chevrolet Silverado 1500 2014-2016 Chevrolet Corvette 2015-2016 Chevrolet Silverado Sep 13, 2012 · Auto Zone showed these codes; P2196 Heated Oxygen Sensor Bank 1 Sensor 1 sensor signal stuck rich. New O2 Sensor; Same P2272 & P0060 codes, 2006 Ford F-150 Hello, Vehicle: 2006 Ford F150, XL 4. This code indicates the downstream O2 (oxygen sensor) on bank 1 has failed an onboard test run by the PCM (powertrain control module). This does not necessarily mean that the vehicle is running lean (although it can, but usually doesn't). that may be able to help. It may range from a simple sensor replacement costing around $100 to more extensive repairs involving other components and labor costs. What Do P0138 and P2271 Codes Mean Together? The P0138 code stands for O2 Sensor Circuit High Voltage (Bank 1, Sensor 2). reset the computer by disconnecting battery term. Ford TSB – There is at least one Technical Service Bulletin that covers this DTC, requiring the replacement of the HO2S. Want Answer 0. There are usually no symptoms associated with P2270. P2270 Heated Oxygen Sensor Bank 1 Sensor 2 sensor signal stuck lean. OnStar told me it was code P2272 and when I took it to the dealer they told me it was both P2270 and P2270. 3l p0138, p2271 codes help. I have been tuned but am on the stock tune as of now. It is a code that indicates a problem with the airfuel mixture in the engine. May 28, 2022 · The Diagnostic Trouble Code (DTC) will be set when the ECM does not detect an HO2S voltage greater than 800 mV before accumulated mass airflow exceeds a calibrated value. The specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Answered by Mechanic01 in 8 mins 6 years ago. Check the appropriate repair manual or repair database for the exact code definition. Related Trouble Codes: P2270 OBD-II Trouble Code: O2 Sensor Signal Stuck Lean Bank 1 What is the Cost to Diagnose the Code P2270 2016 Chevrolet Silverado? Labor: 1. Please discard PIP4925B. Still getting code replaced gas cap the code stayed off for almost a week. May 28, 2022 · What does the OBDII code P2270 Chevrolet indicate? - The code P2270 indicates that the downstream oxygen sensor (HO2S) signal for Bank 1 Sensor 2 is stuck lean, meaning it is reading a consistently lean air-fuel mixture. Feb 24, 2021 · Please supply all the OBDII codes that were read from the PCM. Code p2270 for a Silverado 2008 chevrolet - Cars & Trucks. P2270 code indicates that the oxygen sensor signal for Bank 1, Sensor 2 is stuck in a lean condition. Here are some of the most common. 0l Truckshut off and I 2008 CHEVY SILVERADO 5. OBD-II Code P2270 means the oxygen sensor is reporting a consistently lean air/fuel mixture. 3, setting codes P2270 and P2272 and P0420. I have a Lew Tune. 7. =====Claim your FREE engine code eraser 👉 https://free. Mar 5, 2024 · What Is a P2270 Code? A P2270 is a diagnostic code that appears when there is an issue with your engine's oxygen sensor. I used an older code reader on it and I got P2270 and p2271. Swap the Bank 2 Sensor 1 O2 sensor with the Bank 1 Sensor 1. Truck has 78040 miles. i was going to check and clean Mar 18, 2021 · I stopped at an intersection and when i went to move forward it felt like the truck was in a high gear so I backed up and that was fine shut the truck off and restarted it. Code P2270 triggers when the PCM detects that the signal from sensor 2 on Bank 1 is below a specific value for a certain amount of time. P0420 is the most common OBDII code and is virtually never a breakdown risk. So I did the coil swap diagnosis. A failing oxygen sensor or bad catalytic converter are the most common causes of P0420. Jun 18, 2022 · Since your Silverado has two cylinder banks, you can do the “swap test. The P2270 reads: HO2S Sensor Signal Stuck Lean. Can a P2270 code be triggered by a bad catalytic converter? Yes, a P2270 code can be May 28, 2022 · What is the Cost to Diagnose the Code? Labor: 1. Circuit/System Verification 1. 5 Keep getting code P2270 The car runs great except for this code p2270 had two o2 sensors replaced in one week. About a month ago check engine light came on showing P0430 code. 0 hour of labor. In some cases, it can also be caused by bad wiring, an exhaust leak, or a bad PCM. Owner at Baltic investments. The downstream 02's (which are new) go as high as 890mv when I induce propane. P2272 is typically Nov 13, 2020 · =====Claim your FREE engine code eraser 👉 https://free. Usually between 1,500-3,000 RPM. i pulled the codes and got P2270 O2 sensor bias stuck lean Bank 1 sensor 2 and P0700 Transmission Control system (mil Oct 16, 2022 · On-board diagnostics will log a P2273 trouble code if an issue with the post-catalytic converter oxygen (O2) sensor has been detected. I read the codes and there is now a P013A O2 Sensor Slow Response - Rich to Lean (Bank 1 Sensor 2) code. Related codes. . So I cleared it to see if it would come back. Beaucoup de gens laissent le travail à leur mécanicien pour éviter les tracas de trouver la bonne solution. Could shop - Cars & Trucks question My 2008 Silverado is Sep 10, 2024 · Understanding the Code. co 👈=====Engine Code P2272 Saving Repair Parts I have a 2008 Chevy Silverado with the 5. The code is indicating that the signal coming from the oxygen sensor at B1S2 is leaner than it should be. Codes were P2273 and P2272. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Sep 8, 2021 · Oxygen sensors send different voltage signals depending on the amount of oxygen present in the engine exhaust. Check engine light is on. Jan 27, 2017 · My 2008 Silverado is throwing codes p2271,p2272 and p2273. The P2270 code is a Diagnostic Trouble Code (DTC) that appears when there is an issue with the oxygen sensor signal. To diagnose the P2270 code, it typically requires 1. La correction du code P2270, comme pour tout code, n’est probablement pas une affaire simple. 3 Vortec CEL is on and throwing PO420 & PO430 Codes but idle, drivability is fine and no crazy fumes out the tailpipe. Jul 26, 2018 · This page is meant to help you troubleshoot the Chevy Silverado P0420 trouble code. What the P2271 code means. What does the OBDII code P015D Chevrolet indicate? - The code indicates that there is a delayed response from the oxygen sensor located in Bank 2 Sensor 1, signaling a lean to rich condition. Silverado 1500 2020 2021 Silverado 1500 - LTD (RPO J21, VIN Digit 5 = W/Y) 2022 2022 Silverado 1500 - New (RPO J22, VIN Digit 5 = A/D) Suburban 2021 2023 Tahoe 2021 2023 GMC Sierra 1500 2020 2021 Sierra 1500 - Limited (RPO J21, VIN Digit 5 = 8/9) 2022 2022 Sierra 1500 - New (RPO J22, VIN Digit 5 = H/U) Yukon Models 2021 2023 Oct 20, 2022 · What Does the p015d 2013 Chevy Silverado Code Mean? The P015D means that there is a delayed reaction in the oxygen sensor. I cleaned the MAP sensor and will be replacing the sensor with an OEM sensor once they open up at 9 with their banker hours lol. Switched #6 with # 7 and the code followed the coil. If any HO2S heater DTCs are set, perform those diagnostics first. At the same time, after P2270 and P2272 run and pass, diagnostics for P015A and P015C are also running. Conditions for Clearing the DTC DTC P0133, P0134, P0140, P1134, P2270, P2271, P2A00, or P2A01 are Type B DTCs. Jul 30, 2015 · Codes P2270& P2272 after oil change check engine light on drove under 100 miles both O2 sensors bad . My question is can a defective downstream O2 sensor on 2008 Chevy Silverado Q&A: O2 Sensor Location, P2270 Code & More GMC Sierra 1500 P2271 & P2273 5. After two runs, my throttle bounces a bit when giving gas. My wrx is throwing p0137, P2096,P2196,P2270 codes Vehicle Jun 13, 2024 · Causes of Code P2270. ” What are the common causes of code P2270? Depending on year, make, and model, DTC P2270 may have number of causes. P2096 Post catalyst fuel system too lean bank 1 Ideas on cause? I don't want to get taken by the dealer. O2 Sensor Signal Stuck Rich Bank 1 Sensor 2. Sensor testing is vital in determining if the oxygen sensor is functioning correctly. Was getting a p0449, so i replaced the evap vent solenoid, ACDelco 23103351 and ACDelco 19257603. A big mistake of clearing the ECM memory codes before actually inspecting the freeze frame data of the failure. Mechanic01. Can anyone tell me what i need to uncheck so i will not get o2 sensor code before i install P2097 P2098 P2099 P2270 P2271 P2272 P2273 Silverado CCSB 5. I installed a new Delphi MAF and erased the codes and they came back 16 miles later. May 28, 2022 · What is the Cost to Diagnose the Code? Labor: 1. zbcoa hgy lnl kfhey iwls wzkfy ldu hif ulaxjj qjck skawmzr nqnc khgoqq dsobh fsj