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P1171 Diagnostic Trouble Code Discussion for May 2011

Fuel System Lean During Acceleration

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Trouble Ticket Help Requests for DTC P1171
Help Request Posted
1999 Saab 9-5 2.3L MIL Lamp on VIN: TS3ED48E1X
P1171: short term fuel trim max value air fuel too rich. ... obd2 scanner for this car so I dont have a lot of scan data. Had a code for random misfire and slow o2 sensor response. checked spark plugs and are in good shape, test drove and is not missing so replaced the o2 sensor and test drove and the check engine l...
May 06, 2011
2001 Volkswagen Jetta GLS 1.8L Poor Idle Quality, Hesitation, Surge, Stall, Misfire, MIL Lamp on VIN: 3VWPD69M51
P1171: Angle sensor 2. This car came to us from another shop due to sporadic lack of throttle responce, got fault codes for angle sensors and lack of adaptation. This problem has been on going for aboute 6-9 months and has progressivlly gotten worse. We have checked and cleaned all ...
May 18, 2011
2001 Saab 9-5 2.3t 2.3L MIL Lamp on VIN: YS3ED58E11
P1171: Short term fuel trim too lean. Customer states car jerks on accel and cruise but I was unable to duplicate that. Car run lean at cruise and at idle. 02B1S1 reads .002-.006 mv at idle and injector pulse reads 3.1-3.4 ms, short term fuel trim reads 25%, MAF reads 3.3-4.1 gps. I have smoked th...
May 19, 2011