P0171 Diagnostic Trouble Code Discussion for April 2016
Fuel System Lean (Bank 1)
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| Help Request | Posted | |
| 2009 Toyota Corolla XLE 1.8L No Start VIN: 1NXBU40EX9 P0171: lean bank 1. This high mileage Toyota 1.8L DOHC vehicle came in on the hook. It wanted to start with accelerator put to the floor. Still would not start. Plugs pulled and inspected. Has newish (not new but not 250K) plugs Denso [...] Iridium's. They were wet. After adding ... |
April 05, 2016 | |
| 2004 Ford F-150 FX4 5.4L Poor Idle Quality, Stall VIN: 1FTPW14534 P0171: Bank 1 too lean. HELP!! We need a decisive blow to this obstinate F150 that has been pummeling us for a couple of weeks now!!! This 3rd round has been killing us!! I’ll do my best to re-inact the fight starting with this latest round. Round 3- The truck STILL exhibits a rough,... |
April 13, 2016 | |
| 2004 BMW X3 3.0i 3.0L MIL Lamp on VIN: WBXPA93434 P0171: Fuel Trim Bank 1 system too lean. Codes store P 0171 P0174 system too lean bank 1 and bank 2. I believe we have two X3's that have similar problem. This one in particular seems to be a bit more lean on bank 1 than bank 2 but both banks are lean in the low range and high rpm range and okay in t... |
April 14, 2016 | |
| 2004 Ford F-150 FX4 5.4L Poor Idle Quality, Stall VIN: 1FTPW14534 P0171: Bank 1 too lean. HELP!! We need a decisive blow to this obstinate F150 that has been pummeling us for a couple of weeks now!!! This 3rd round has been killing us!! I’ll do my best to re-inact the fight starting with this latest round. Round 3- The truck STILL exhibits a rough,... |
April 15, 2016 | |
| 2008 Pontiac G6 2.4L MIL Lamp on VIN: 1G2ZG57B98 P0171: System too lean bank 1. Customer brought car in, said it will not rev past 2k while in drive, barley drove to our shop. Has new maf, reman. Car will rev up while in park. Will not rev up past 1800 in drive. Acts like converter clogged up. Remove upstream o2, same result. Customer did... |
April 18, 2016 | |
| 2005 Ford Escape XLT 3.0L MIL Lamp on VIN: 1FMYU03135 P0171: Fuel System Too Lean (Bank 1). Vehicle was purchased and than brought to us for a PO171,PO174 lean codes. SFT was at plus 9 on both banks and when spaying intake went down to -1 to -2 both banks LTF is 25.Replaced upper and lower gaskets and now STF is now lower but not much when spraying i... |
April 20, 2016 | |
| 2001 Kia Rio 1.5L Poor Idle Quality, Stall VIN: KNADC12381 P0171: Fuel System Too Lean. Given to us to find out cold idle hunt and stall. Primarily trying to track down Vacuum Hose routing. Have looked through Tech help Articles. Kia bulletin says pcv vacuum below throttle plate and vent above throttle plate. The Y-connector between cyl #2 and #3... |
April 27, 2016 |
