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Professional Automotive Repair Technical Discussions for March 6, 2026 International Automotive Technicians' Network (iATN) - Members Only |
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| (Also Available: All, Asian, Chrysler, European, Ford, GM.) | ||
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Open Help Requests for GM
| Help Request | Answers | |
| 2012 Chevrolet Suburban 2500 LS 6.0L MIL Lamp on VIN: 1GNWKLEG6C This 6.0 at idle will max out the long term fuel trim. Driving the truck the long term is about 21-23 on both banks. Mash the throttle up hill and my 02 sensors go lean and adaptive is at zero. Drive it normally the adaptive is 23-24 and the 02 sensors are... Trouble codes: P0171 (Lean at idle), P0174 (Lean at idle) |
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Fixes & Summaries for GM
| Fix/Summary | Answers |
