P0171 Diagnostic Trouble Code Discussion for October 2016
Fuel System Lean (Bank 1)
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| Help Request | Posted | |
| 2003 Chevrolet Malibu LS 3.1L Poor Idle Quality, Surge, Poor Fuel Economy, MIL Lamp on VIN: 1G1NE52J03 P0171: Fuel System Lean (Bank 1). ... SOMETHING YOU KNOW I HAVE A HEADACHE. BEEN 30 DAYS OF CARS FROM HELL!!!. AND YES NOW IS THE WORST CAR (MINE).. and yes its my daily driver. Soooo for a month and progressive getting faster to set mil lamp is code p0171 . the last week could heat vacuum scr... |
October 04, 2016 | |
| 2002 Toyota Celica GT 1.8L MIL Lamp on VIN: JTDDR32T42 P0171: Fuel System Too Lean (Bank 1). ... keeps coming back, P0171. The long term fuel trims are maxed and the short trim hovers around 0 at this point. Things we have done; Cleaned Maf sensor, exchanged maf with new one, replaced intake manifold gasket, checked pcv valve (clicks), smoked intake w... |
October 07, 2016 | |
| 2006 Volkswagen Passat 2.0T 2.0L Poor Idle Quality, Hesitation, Surge VIN: WVWAK73C96 P0171: lean. ... and made several repairs and no real progress. It originally came in complaining of loss of power and acceleration, and check engine light. We found codes p0301-304, p0299 turbo recirculation, p0455 purge solenoid, p0299... |
October 12, 2016 | |
| 2000 Chevrolet K2500 LS 7.4L Hesitation, MIL Lamp on VIN: 4FTNW304N0 P0171: Fuel Trim System Lean (Bank 1). I received this truck and the complaint was that the air conditioning compressor clutch is always on even when a/c was not commanded. Test led me to the clutch relay always having a ground signal from the pcm. I replaced the pcm (factory gm reman) and programm... |
October 13, 2016 | |
| 2006 Volkswagen Passat 2.0T 2.0L Poor Idle Quality, Hesitation, Surge VIN: WVWAK73C96 P0171: lean. ... and made several repairs and no real progress. It originally came in complaining of loss of power and acceleration, and check engine light. We found codes p0301-304, p0299 turbo recirculation, p0455 purge solenoid, p0299... |
October 13, 2016 | |
| 2000 Chevrolet K2500 LS 7.4L Hesitation, MIL Lamp on VIN: 4FTNW304N0 P0171: Fuel Trim System Lean (Bank 1). I received this truck and the complaint was that the air conditioning compressor clutch is always on even when a/c was not commanded. Test led me to the clutch relay always having a ground signal from the pcm. I replaced the pcm (factory gm reman) and programm... |
October 14, 2016 | |
| 2012 Chevrolet Cruze LS 1.8L MIL Lamp on VIN: 1G1PC5SH4C P0171: Fuel trim lean. Car came back, same p0171 code, system lean have tested o2 circuits, fuel pressure, road test with movie, freeze frame reveled nothing out of ordinary. Non serviceable fuel filter. Help! any other ideas? no tsb's on issue,,, |
October 14, 2016 | |
| 2004 Ford Taurus SES 3.0L No Start VIN: 1FAFP55S04 P0171: b1 lean. Towed this car for a no start after a short timed parked. The car started but ran poorly and stalled. The power windows also didn't work at that time. After unloading the car at our shop I tried it again. It started after some cranking time and ran like before... |
October 14, 2016 | |
| 2012 Chevrolet Cruze LS 1.8L MIL Lamp on VIN: 1G1PC5SH4C P0171: Fuel trim lean. Car came back, same p0171 code, system lean have tested o2 circuits, fuel pressure, road test with movie, freeze frame reveled nothing out of ordinary. Non serviceable fuel filter. Help! any other ideas? no tsb's on issue,,, |
October 17, 2016 | |
| 2002 BMW 330Ci 3.0L No Start, Stall VIN: WBABS53452 P0171: System to lead bank 1. Help!!! i've fallen into bmw hell and i cant get up. Ok this guy broght this wonderful piece of german engineering to me to replace the spark plugs,fuel filter,and the vanos oil hose, so inorder to replace the vanos oil hose you have to lift the intake manifol... |
October 21, 2016 | |
| 1997 Mercury Sable GS 3.0L Poor Idle Quality, MIL Lamp on VIN: 1MELM50U4V P0171: Lean bank 1. For you short version guys, what are real fuel pressure specs for this car? Or read on, thanks. Mil on, lumpy idle after a long idle. First the upstream O2 sensors seem to be "going to sleep" after a long idle. Both read around 20mv, crack the idle and... |
October 25, 2016 | |
| 2005 Honda Accord LX 2.4L MIL Lamp on VIN: 1HGCM56495 P0171: Fuel System Too Lean (Bank 1). We initially did a starter on this. Upon completion of the starter, we had a lean code setting very quickly, within 20 minutes. AF FB is between 13-20, AF FB AVG is at 25. We have smoke tested the intake and verified that we have no leaks, and verified all ass... |
October 27, 2016 | |
| 2010 Ford E-450 Super Duty 6.8L MIL Lamp on VIN: 1FDXE4FS8A P0171: Bank 1 lean condition. ... bonded to the left valve cover broken off. Replaced valve cover smoked tested again and found no more vacuum leaks. Installed known good mass air flow sensor. Test drove again and the p0171 came back. Monitored the data and I have the following: stft 1--n... |
October 28, 2016 |
