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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for December 13, 2022
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2017 Ford Fusion S 2.5L MIL Lamp on VIN: 3FA6P0G76H
So the solution ended up being bad fuel. This car is not a flex fuel vehicle. I have encountered flex fuel vehicles with bad sensors and know to check but I made the mistake of assuming. Then the o2 sensor seemed odd to me and i got fixated on that. During tes... Trouble codes: P0171.
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2020 Ford F-550 Super Duty 7.3L No Start, No crank VIN: 1FDUF5HN9L
Fix was battery junction block replacement (underhood fuse box). The run/start relay which powers PCM via fuse #50 is integrated and non-serviceable,it was getting ground command from BCM but not closing. Surprised to see this on a new truck but the dealer had... Trouble codes: P0685 (Pcm/ power relay circuit), P06E4.
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