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Prev Professional Automotive Repair Technical Discussions for July 24, 2025
International Automotive Technicians' Network (iATN) - Members Only
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2018 Jeep Grand Cherokee Limited 3.6L MIL Lamp on VIN: 1C4RJFBG2J
Vehicle brought to us running rough and code p0171 and p0300 check for vacuum leaks none found,inspect plugs found worn out so replaced also installed 3 coils for b1 ,after getting to close loop lft went +23% only b1 runs kinda rough but no misfires ,off i... Trouble codes: P0171 (Fuel system lean b1)
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