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Professional Automotive Repair Technical Discussions for April 4, 2023 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 | |
| 2009 Chevrolet HHR LT 2.4L Surge, Surge, Surge VIN: 3GNCA23VX9 Good evening iatn family, I am having a bit of an issue with this Chevy HHR - as for one I am getting a P0401 code but it seems the car doesn't have an EGR valve. The throttle body has been replaced but the vehicle is still idling high. Have tried di... Trouble codes: P1291 (injector high side shorted to GND or V-BATT Bank 1), P1291 (injector high side shorted to GND or V-BATT Bank 1) |
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| 2006 Pontiac Grand Prix 3.8L -17% ltft VIN: 2G2WP55236 So we are seeing over-fuel occurring. LTFT = -10 to -17%, STFT crosses good. KOEO MAF Hz = 700. KOER IDLE MAF = 2800-3000 Hz. WOT = 8500HZ. Injector balance = good. I know the MAF is responsible for this problem because I disconnect the MAF sig wire to for... |
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Fixes & Summaries for GM
| Fix/Summary | Answers |
