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P0171 Diagnostic Trouble Code Discussion for October 2021

Fuel System Lean (Bank 1)


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Trouble Ticket Help Requests for DTC P0171
Help Request Posted
2008 Toyota 4Runner Limited 4.0L MIL Lamp on VIN: JTEBU17R28
P0171: system too lean bank 1. ... Vehicle came to us after customer and other shops threw some parts at it. Consistently will set p0171 code and fuel trims show bank 1 long term fuel trim consistently lean (29%) at idle but short term fuel trim ok at idle b...
October 08, 2021
2008 Toyota 4Runner Limited 4.0L MIL Lamp on VIN: JTEBU17R28
P0171: system too lean bank 1. Good morning all. Persistent p0171 code, occasional p0174 code. Vehicle came to us after customer and other shops threw some parts at it. Consistently will set p0171 code and fuel trims show bank 1 long term fuel trim consistently lean (29%) at idle but sh...
October 11, 2021
2014 Chevrolet Impala LS 2.5L Poor Idle Quality, Cuts out, Stall, MIL Lamp on VIN: 1G11E5SL7E
P0171: Lean. This car came in with an original complaint of ABS light, Stabilitrak lights on. Codes for erratic left front wheel sensor. A visual inspection found damaged sensor, and bearing. ABS solved with new sensor and bearing.. While viewing scanner, noticed very ...
October 19, 2021
2010 Cadillac SRX Performance 3.0L MIL Lamp on VIN: 3GYFNEEY3A
P0171: too lean bank 1. Hello all, 2010 Caddy SRX 3.0. We put a used engine in due to the old one grenaded. Used engine supposedly has approx 50k on it. Runs fine, drives fine, but set lean codes. Engine vacuum is normal around 14in. Smoke tested - no leaks found. Low side fu...
October 25, 2021