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P0171 Diagnostic Trouble Code Discussion for October 2020

Fuel System Lean (Bank 1)

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Trouble Ticket Help Requests for DTC P0171
Help Request Posted
2010 Mazda CX-7 Touring 2.3L Hesitation, MIL Lamp on, Bogs out on accel VIN: JM3ER2W37A
P0171: Sysytem too lean. C/s says vehicle slow to accelerate at any speed. We scanned and found the above codes and duplicated customer concern. Vehicle upon accel lacks power, the vehicle will get up to speed, but is very sluggish. As per alldata, we performed test for p0091 as d...
October 01, 2020
2012 Nissan Juke S 1.6L Poor Idle Quality, Poor Idle Quality VIN: JN8AF5MV3C
P0171: fuel system lean bank 1. ... start condition. i went out to start it and it started right up, test drove it down the road and it quit. afrer stitting on side of the road for 30 mins it started back up. ran rough but was able to get it back to the shop and it died again, checked fo...
October 05, 2020
2001 Ford Taurus SES 3.0L MIL Lamp on VIN: 1FAFP55UX1
P0171: Too lean bank 1. Initial freeze frame data 20 mph 71% load stft1 10.2 stft2 10.2 ltft1 25 ltft2 25. Searching iatn found a reply and checked o2 sensors at wot all sensors dropped to below 50 millivolts. Previous post says fuel supply issue. No fuel pressure regulator or se...
October 15, 2020