86' 944 N/A wont fire
I just finished a clutch job on my 86' 944, now everything is back together but it wont start. I replaced and the speed and reference sensors along with the bracket, with the updated version (the one with the sleeve over the reference sensor) because I broke the old ones taking them out. I gapped the sensors properly. I,ve got lots of compression and lots of fuel but the timing of my spark is way off. I checked for pattern in the spark and found its totally random and not in proper sequence. At one point I did have the poles reversed on the coil, Is it possible that this would have fried the computer? Or is there some way to recalibrate the system?
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Possibly fried the system. Did you remove the spark plugs wires by any chance? Could have gotten those mixed up if so.
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Oh, and you made sure you connected the speed sensor to the right connector on the harness, and the reference sensor to the correct connector right? They can not be backwards.
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I took the wires off the plugs only to test the firing order, but they are definitely back in the right spots, the reference sensors are in the proper bracket, when i switch them I don't get any spark. I,m wondering if because the new bracket I put in is different could it be sending a slightly different signal to the computer than before? Also the TDC sensor wire goes up to what looks like a test plug on the back of the engine what is this used for ?
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Some sensor brackets had a raised area on them for the speed sensor, and some used a washer. If your first one had a washer, and the second had a raised area, and you used the washer, then your gap would be way off. Does the tach bounce when you are cranking the car?
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neither bracket had a washer, but the original didn't have a sleeve for the reference sensor and the new one does. Yes the tach does bounce when cranking.
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