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Professional Automotive Repair Technical Discussions for April 2, 2022 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
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Fixes & Summaries for GM
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| 2014 Buick Encore 1.4L Low power VIN: KL4CJFSB1E I found the fault! The bypass valve was stuck open. This valve is operated by the ECM by vacuum through a relay. I confirmed that actual boost, and desired boost were roughly 5 psi apart. As soon as the code set as pending, the ECM would limit the throttle to ... Trouble codes: P0299 (Low boost). |
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