1988 Jeep Comanche 4.0 AW4:
My truck died abruptly in the middle of traffic yesterday morning and then would not fire no matter how much I cranked it over. After work, I went to Autobone and bought a new crankshaft position sensor (Per my research it appears as though I should have went to the dealership instead and bought an OEM sensor which is what I may end up doing.)
After installing the new sensor my truck fired up instantly. I took it once around the block and then figured all was well. Today, I drove my truck to work and it started miss-firing, jerking, sputtering and wanting to die when idling. I had to keep my foot on the gas so it wouldn't conk out. I have a Renix Engine Management unit plugged in and I noticed the ignition timing was sporadic, jumping from 14 to 20 degrees and every number in between when idling at red lights. Does this sound like a bad sensor out of the box? Did I get boned by Autobone?