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P0171 Diagnostic Trouble Code Discussion for April 2020

Fuel System Lean (Bank 1)

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Trouble Ticket Help Requests for DTC P0171
Help Request Posted
2002 GMC Envoy SLE 4.2L MIL Lamp on VIN: 1GKDT13S12
P0171: Fuel System Lean (Bank 1). This vehicle is giving us fits. We have been unable to fully rectify this check engine light for 2 1/2 years now. Have smoke tested intake and exhaust systems multiple times. Have replaced multiple components on multiple different visits. Every time vehicl...
April 09, 2020
2012 Nissan Versa 1.6 S 1.6L Poor Idle Quality, MIL Lamp on VIN: 3N1CN7AP3C
P0171: System lean bank 1. I inherited this Nissan from the shop next door. The complaint is the Check Engine Light is on. Other symptoms are a rough idle, (which the intensity of the roughness varies) and intermittent stalling. When putting into gear or just sitting in gear. No con...
April 15, 2020
2007 Hyundai Azera SE 3.8L No Start, Poor Idle Quality, Cuts out, Stall, MIL Lamp on VIN: KMHFC46F37
P0171: Fuel System Too Lean (Bank 1). The Check Engine light has been on for a long time from the EVAP system related problems. Suddenly out of the blue, the customer started having starting issues, would have to crank on it 3 times before it would finally start, spit, sputter, choke & die...
April 23, 2020