Hello all please help this car is driving me to drinking lol. OK so far replaced distributor plugs and wires tps and isc motor on car. Set timing did minimum idle screw adjustment and adjusted isc just off of the throttle lever when I retracted it. OK so the car was Running like a dream after installing all that. Well after I got the car to run good enough I began tinkering with the a/c. I noticed any time I would hit auto on the ecc I would confirm compresor engagement. As soon as the compressor kicks on it began to stall out my engine. It starts sputtering and if I try to rev up the motor it would sputter and backfire with no power. Hit off on the a/c and the engine revs back up to normal and the car begins running great again. Well I wasn't happy with just accepting that the a/c was bad so I dug deeper. After turning the a/c off I figured my a/c compressor was freezing up or something causing serious resistance to the motor. So I figured I would try switching the a/c to just blow air and make sure compressor disengaged to see if I still had a problem without it engaged. I turned on just fan and the car still would sputter stall and backfire with no acceleration. Well I was switching back and forth at this time between auto and econ I did it about 3 times when I heard a pop under the hood and what seemed to be compression stroke or backfire through the carb. The car wouldn't start after that as well as the backfire. I pulled codes after that and got e22 e24 e31 and e70. All seem to be short related codes. So my question is how could a short because I was on fan mode when the engine blew could cause what I feel is a timing or valve problem any insight would be greatly appreciated.