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DTC help!
So I've got an '85 Suburban with a 5.3 in it from an 04 Avalanche. Completed the swap about 2 years ago and it's been great. This morning on my way to work I noticed the RPM's felt a little high going 80, so I did a system check with my Blue Driver device and came back with 3 DTC's...
P0101 - Mass or Volume Air Flow Sensor "A" Circuit Range/Performance
P0654 - Engine RPM Output Circuit/Open
P0724 - Brake Switch "B" Circuit High
I've done a very little amount of quick research and the last two possibly point to a bad PCM (it's from an '03 Silverado from a salvage yard), possibly bad brake switch, possibly a bad connection at the PCM or bad wiring?
First one may be bad mass air flow sensor?
Just looking for advice or input on what I can do/check or what common fixes are. Any help is greatly appreciated!
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-Adam
90 V1500 GMC Suburban 350/700R4/NP241.....
01 Saturn SL1 stock DD.....
Last edited by SBTork; 10-26-2018 at 08:42 AM.
Reason: added things
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