P0171 Diagnostic Trouble Code Discussion for April 2018
Fuel System Lean (Bank 1)
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| Help Request | Posted | |
| 2010 Audi A4 Quattro 2.0L MIL Lamp on VIN: WAUHFAFL7A P0171: fuel trim bank 1. ... idle code. 3months prior intake manifold, turbo charger, and intercooler were replaced. Carbon cleaning also performed via walnut shell blasting at time intake manifold was replaced. Smoke tested intake system with no leaks found. Watching o2 sensor da... |
April 10, 2018 | |
| 2008 Lexus IS250 2.5L MIL Lamp on VIN: JTHBK26228 P0171: system too lean b1. ... lean p0171 and b2 too lean p0174 the customer replaced the maf sensor with an autozone one but when that didnt fix it he brought it to us here is what the scan data tells me @ 691(idle in drive) 16% throttle fule pressure... |
April 13, 2018 | |
| 2008 Saturn Outlook XR 3.6L Poor Idle Quality, Misfire, MIL Lamp on VIN: 5GZER33768 P0171: lean bank 1. ... rough idle and was tripping the p0171 and misfires codes bank 1 fuel trims are 38 short and 25 long and do not change bank to fuel trims switch and are under 10. i have cleaned the mass air flow and smoked the intake no l... |
April 21, 2018 | |
| 2008 Saturn Outlook XR 3.6L Poor Idle Quality, Misfire, MIL Lamp on VIN: 5GZER33768 P0171: lean bank 1. ... rough idle and was tripping the p0171 and misfires codes bank 1 fuel trims are 38 short and 25 long and do not change bank to fuel trims switch and are under 10. i have cleaned the mass air flow and smoked the intake no l... |
April 23, 2018 | |
| 2002 GMC Envoy SLE 4.2L Hesitation, Stall VIN: 1GKDT13S12 P0171: Fuel System Lean (Bank 1). P0171 returns on second key cycle. Engine bogs down on acceleration like transmission shifting issue. Customer had made multiple repairs before vehicle was brought in. Verified correct installation of throttle body, fuel pressure regulator, fuel pump, and ... |
April 25, 2018 | |
| 2010 Chevrolet Equinox LT 3.0L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 2CNFLNEY1A P0171: System too lean bank 1. When cold car behaves ok once it gets hot it will start acting up misfire cyl 1,3,5 and bank 1 fuel trim goes up to 40 |
April 28, 2018 | |
| 2006 Chrysler 300 C 5.7L o2 feedback lean VIN: 2C3LA63H46 P0171: Fuel System Lean (Bank 1). Does anyone have a charger/magnum/300c they can test a few electrical reading for me? I am looking for a known good control test. Following manufacturer flow and pin out chart I get result of pcm failure, however before pulling trigger I would like a kn... |
April 30, 2018 |
