P0171 Diagnostic Trouble Code Discussion for April 2019
Fuel System Lean (Bank 1)
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| Help Request | Posted | |
| 2011 Hyundai Accent GLS 1.6L MIL Lamp on VIN: KMHCN4AC1B P0171: Fuel system lean bank 1. Car will drive around town all day long with no code until it crosses 55mph and the O2 monitors kick on. Fuel trims look decent except long term part-load is pegged at 25% no matter what, even if I clear adaptives. O2 appears to be working properly, smoked... |
April 03, 2019 | |
| 2011 Hyundai Accent GLS 1.6L MIL Lamp on VIN: KMHCN4AC1B P0171: Fuel system lean bank 1. Car will drive around town all day long with no code until it crosses 55mph and the O2 monitors kick on. Fuel trims look decent except long term part-load is pegged at 25% no matter what, even if I clear adaptives. O2 appears to be working properly, smoked... |
April 04, 2019 | |
| 2005 Chevrolet Malibu 2.2L MIL Lamp on VIN: 1G1ZS52FX5 P0171: Fuel System Lean. P0171 code The engine code comes on after two trips 25 miles each or more. fuel trims stft 0 +-3 ltft 20 idle vacuum test ok smoke test ok the problem is the rear 02 sensor in reading 690 to 850 mv after 1.25 minutes of run time, replaced both 02 sensor an... |
April 09, 2019 | |
| 2000 Honda Accord LX 3.0L lean mixture VIN: 1HGCG2240Y P0171: Fuel System Too Lean (Bank 1). thank you in advance for reading this. Car has a long term fuel trim of +7.8% with fuel pressure regulator disconnected if i plug it in the trim goes to a combined short and high fuel trim of +17%.if it heat soaks car barley runs and trims go to +45% until... |
April 10, 2019 | |
| 2000 Honda Accord LX 3.0L lean mixture VIN: 1HGCG2240Y P0171: Fuel System Too Lean (Bank 1). thank you in advance for reading this. Car has a long term fuel trim of +7.8% with fuel pressure regulator disconnected if i plug it in the trim goes to a combined short and high fuel trim of +17%.if it heat soaks car barley runs and trims go to +45% until... |
April 11, 2019 | |
| 2011 BMW 328i xDrive 3.0L Surge, Stall, MIL Lamp on VIN: WBAPK5C56B P0171: Bank 1 lean fuel trim. Car came in with CEL on drove the car seems to run fine. 2 codes 29E0(P171) & 29E1(P174) Bank 1 & 2 lean condition LTFT was 17% both banks, STFT was around 10%. Checked crankcase pressure 35mbar spec is 33%2 +/-5mbar. Cleared codes & adaptation... |
April 18, 2019 | |
| 2014 Ram 2500 Laramie 6.4L Surge, Cuts out, MIL Lamp on VIN: 3C6UR5FJ8E P0171: Fuel system 1/1 lean. Hello all, We have this Ram in the shop that the customer had been taking to the Chrysler dealership quite faithfully and had them replace the engine with a reman unit. The reason for the engine replacement is unknown to us. Ever since they replaced th... |
April 22, 2019 | |
| 2014 Ram 2500 Laramie 6.4L Surge, Cuts out, MIL Lamp on VIN: 3C6UR5FJ8E P0171: Fuel system 1/1 lean. ... shop that the customer had been taking to the Chrysler dealership quite faithfully and had them replace the engine with a reman unit. The reason for the engine replacement is unknown to us. Ever since they replaced the engine he is getting a surge/buck... |
April 24, 2019 |
