I had a bad control module on my '89 cierra 2.5L Tech 4 motor. It was recommended that I also replace the crankshaft sensor as well since it's located under the coil pack & control module. So I had the module & crank sensor replaced. I get in and it starts right up. I put it in reverse and when I hit the gas it stalled. I restart it and proceed to back up. I put it in drive and now the transmission shift points are waaay off. I pull over and raise the hood and I notice the trannie cable is unclipped. I snap it back in place and now everything seems fine until I stop at a light. The light turns green and again when I touch the gas it stalls right away. It starts up and I proceed once again. This happens about 3 out of 10 times the gas is pressed. If I two foot the gas & brake to keep the rpms up a tad it's fine.
My question is can a defective module or crank sensor cause this problem?? I also have one of those GM code readers and it tells me there is a DIS short.
Thanks in advance.
Chas