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P0171 Diagnostic Trouble Code Discussion for September 2019

Fuel System Lean (Bank 1)


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Trouble Ticket Help Requests for DTC P0171
Help Request Posted
2008 Jeep Commander Limited 5.7L MIL Lamp on VIN: 1J8HG58218
P0171: bank one lean. tested for vacuum and exhaust leaks. replaced intake gaskets. The map sensor reading seems right. reading the same as a vacuum gauge teed in. baro is correct for area. I thought for sure it was the intake seals they were flat as a pancake. even tho I could...
September 04, 2019
2015 Scion tC 2.5L Monitors VIN: JTKJF5C72F
P0171: System Too Lean Bank 1 Fixed. When I got the vehicle I found P0171 & P0101. Engine was definitely lean, STFT 10, LTFT 25 through most of the RPM range. That problem has been repaired with the factory air cleaner assembly. He had an aftermarket conical air filter with the chrome tub...
September 23, 2019
2017 Cadillac XTS Luxury 3.6L Hesitation, Surge, Stall, Misfire VIN: 2G61M5S35H
P0171: Lean bank 1. Car towed in after 3 days at another repair shop. Dead battery. Charge battery and try to start. Car stumbles stalls , backfire , misfires .. After numerous attemps and using carb spray got it running at 1500 rpm.numerous codes - all from previous shop not...
September 26, 2019
2015 Scion tC 2.5L Monitors VIN: JTKJF5C72F
P0171: System Too Lean Bank 1 Fixed. When I got the vehicle I found P0171 & P0101. Engine was definitely lean, STFT 10, LTFT 25 through most of the RPM range. That problem has been repaired with the factory air cleaner assembly. He had an aftermarket conical air filter with the chrome tub...
September 26, 2019