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Professional Automotive Repair Technical Discussions for January 16, 2020 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 | |
| 2004 Pontiac Bonneville GXP 4.6L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1G2HZ54Y44 Vehicle came in with MIL and P0171, P0174 and P0300 stored. Started cold and found that even numbered cylinders misfired until vehicle went into closed loop, then smoothed out but lean exhaust on bank 2 remained (35+ on bank 2). Found intake duct boot to... Trouble codes: P0171 (Fuel Trim System Lean Bank1), P0174 (Fuel Trim System Lean Bank2), P0300 (Misfires) |
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Fixes & Summaries for GM
| Fix/Summary | Answers |
