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Bunker Hill, WV
What DO you HAVE? Spark or fuel? How wet and fouled are the spark plugs?
IF all wiring is still intact , then monitoring with Honda scanner for PCM command , is best way to verify. It is PCM controlled circuit. Thermal protector is normally closed (shorted , as you say) , it 'opens' (like a blown fuse) when it detects compressor overheating. Also pressure relief valve would allow freon to 'blow-off' , when high pressure side gets to high.IF you decide to try a used PCM , check the part numbers to make sure they match up!! HONDA parts dept. should be able to help.IF you change the PCM , the immobilizer may need to be re-programmed, or car won't start.
NOT supposed to be codes. IT'S a maintenance reminder. Turn key off , press and hold 'reset' button in gauge area on right , turn key on (just to 'run' position , not start) continue to hold button in for at least ten seconds , the light should then go off (reset).
How many miles? Broken timing belt?
Do you have the harness and PCM from the '92 engine? If not just always keep a reserve of cash for repairs to mods.
You answered your own question , thank you. Check belt tensioner and other pulleys.
Are you getting voltage to any of the fuses ?
Do you want status or a dependable car? Consumer reports 'used car buyers guide' might help you with your decision.
Solution may be to have it test driven , with scanner reading 'live' data , while duplicating symptoms you describe. Next time it happens , don't pull over and stop (if traffic permits) , just put in neutral and shut it off(NOT TO THE LOCK POSITION!!!) and restart it , put back in drive and see if problem goes away , IF it does , then probably a wiring or connection issue. Would still need testing to confirm proper diagnosis.
PEDAL position sensor would be in the pedal assembly , THROTTLE position sensor would be in throttle body housing, both have redundant sensors.