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P0171 Diagnostic Trouble Code Discussion for November 2011

Fuel System Lean (Bank 1)


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Trouble Ticket Help Requests for DTC P0171
Help Request Posted
2005 Ford Ranger Edge 4.0L MIL Lamp on VIN: 1FTZR15E65
P0171: lean bank 1. we have a 05 ford ranger here today customer complains of the mil on. he took it to another garage but they couldnt find anything. i first looked at the short term fuel 2% bank 1 and 2 and long term 12% bank 1 and 2. i sprayed carb leaner around the intake wit...
November 01, 2011
2004 Ford F-150 Heritage XLT 4.2L MIL Lamp on VIN: 2FTRF17224
P0171: Lean Bank 1. Easy fix...not this Ford.. I thought that it was the usually air flow meter being dirty,...removed and inspected, clean as necessary and check readings on air flow meter, Baro is 156 at Sea level.(Daly City, CA). volts output is about .83volts at idle. Smoke t...
November 04, 2011
2006 Dodge Grand Caravan SE 3.3L No Start, Hesitation, Stall VIN: 1D4GP24R96
P0171: Fuel System Lean (Bank 1). ... shop with a complaint of a check engine light and hesitation at times and a low speed stall. Scanned codes and have a P0107 and P0171. Test drove with no stalling noticed on test drive but did feel hesitation very briefly....
November 10, 2011
2003 Jaguar X-Type 2.5L Surge VIN: SAJEB52D43
P0171: lean fuel trim bnk1. Thanks in advance for some info on this Jag. Symptom: surging as fuel pressure drops to 30psi. We ass-u-me fuel pump, new pump, same problem. On hindsight, we've found the car runs fine until fuel level gets below 1/4 level, then the surging starts. Fill tank ...
November 11, 2011
2001 Chevrolet Impala 3.8L Hesitation, Cuts out, Misfire, MIL Lamp on VIN: 2G1WF55K01
P0171: Fuel Trim System Lean. ... shops have tried to fix. When first starting out from stop vehicle will hesitate one time, feels like a fishbite, at cruising speed around 45 MPH will have what feels like multiple missfires or engine is just cutting out rapidly, in park can get same thing...
November 14, 2011
1999 GMC Savana 3500 5.7L Poor Idle Quality, Surge, MIL Lamp on, Lean VIN: 1GDJG31R3X
P0171: Fuel Trim System Lean (Bank 1). This truck is adding fuel from idle up into cruise. The lean codes are setting on decel at about 33 mph. I have check fuel pressure under full throttle and it is at 57 psi. The o2's are switching, they are not showing lean. The actual compliant is that it surg...
November 17, 2011
1998 Ford E-350 Econoline Club Wagon XL HD 5.4L MIL Lamp on, No power VIN: 1FDWE37L5W
P0171: testing and results. ... into it was brought to me with exhaust cut off and a new cat on it with a lack of power. It had a code of p0171 and a rough idle the long term fuel trim bank 2 is low and the Maf sensor is a little out of range I am not picking up any misfire, any help in ...
November 21, 2011
2003 Jaguar X-Type 2.5L Surge VIN: SAJEB52D43
P0171: lean fuel trim bnk1. Thanks in advance for some info on this Jag. Symptom: surging as fuel pressure drops to 30psi. We ass-u-me fuel pump, new pump, same problem. On hindsight, we've found the car runs fine until fuel level gets below 1/4 level, then the surging starts. Fill tank ...
November 29, 2011
2006 Chevrolet Trailblazer LT 4.2L wot hesitation VIN: 1GNDT13S76
P0171: Fuel System Lean (Bank 1). acts like plugged exhaust. cruising trans feels like it skips from 1st to 4th shifts at 3500 -4000 rpm. but the customer concern is at wot the trans down shifts to 2nd and accelerates till it hits the rev limiter and will not shift till u let off the throttle....
November 30, 2011