P0171 Diagnostic Trouble Code Discussion for April 2017
Fuel System Lean (Bank 1)
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| Help Request | Posted | |
| 2001 Chevrolet Tahoe 5.3L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire VIN: 1GNEK13T51 P0171: Fuel Trim System Lean (Bank 1). This one is fun! I've looked thru the archives already and 95% of the fixes are fuel pumps, the rest are a mix of regulators and filters. I've changed three pumps in the last three days! Had changed one regulator three months ago, just changed it again after t... |
April 03, 2017 | |
| 2009 Subaru Impreza WRX 2.5L Poor Idle Quality VIN: JF1GE76619 P0171: testing and results. ... 2008 Subaru WRX that has a lean code p0171 To me the MAF reads a bit high but not sure if that because of the turbo. map sensor is around 10 ish. fuel trims are high. dont hear a vacuum leak. but customer did state that there is an exhaust leak. |
April 05, 2017 | |
| 2007 Dodge Caliber SXT 2.0L MIL Lamp on VIN: 1B3HB48B97 P0171: Fuel System Lean. Car came in with P0171 lean bank 1 and P2004 intake manifold runner stuck open. Found butterfly valves in intake manifold to be locked into position. Replaced intake manifold with new oe unit from dodge dealership. new intake took care of P2004. My problem is ... |
April 20, 2017 | |
| 2004 Ford Expedition XLT 4.6L Poor Idle Quality, MIL Lamp on VIN: 1FMRU15W84 P0171: System lean bank one. ... ago. Complaint was the SES light was on. Well it wasn't and all monitors were incomplete. It did however have a misfire on at least one cylinder. We did the previous repairs listed. It ran fine and left. Now the SES light is on. P0171. Here's the fun part.... |
April 21, 2017 | |
| 2007 Dodge Caliber SXT 2.0L MIL Lamp on VIN: 1B3HB48B97 P0171: Fuel System Lean. Car came in with P0171 lean bank 1 and P2004 intake manifold runner stuck open. Found butterfly valves in intake manifold to be locked into position. Replaced intake manifold with new oe unit from dodge dealership. new intake took care of P2004. My problem is ... |
April 22, 2017 | |
| 2004 Ford Expedition XLT 4.6L Poor Idle Quality, MIL Lamp on VIN: 1FMRU15W84 P0171: System lean bank one. ... ago. Complaint was the SES light was on. Well it wasn't and all monitors were incomplete. It did however have a misfire on at least one cylinder. We did the previous repairs listed. It ran fine and left. Now the SES light is on. P0171. Here's the fun part.... |
April 26, 2017 | |
| 1999 Ford F-150 XL 4.2L MIL Lamp on VIN: 1FTZF1824X P0171: System too lean bank one. ... with a p0171 that autozone had scan and they sold him a 02 sensor that he just wanted us to replace so we did but we had to take off the exhaust manifold to remove the 02 because not even our 02 socket could get it out. we heated up the 02 then grabbed it ... |
April 28, 2017 |
