I have a similier problem no spark out of the coil. I have replaced the map, erg, dist., Cap, rotor, wires, plugs, iac, tps, both collant sensors, ignition switch, fuel pump, fuel relay, fuel filter, timing is correct. I am at a point of giving up any suggestion on what i could do I have 12v going into the coil but it won't spark? Replaced the ECM and have an extra prom chip but it continues to do the same thing. I'll start it up it will run fine for 5 mins then stall but when i go to start it up once again it will lose spark I'll disconnect the battery for an hour it will regain spark run then die losing spark yet again any suggestion

the timing fine check it earlier today new knock sensor nothing seems to work has just about all new sensor common knowledge it should be running coil has power it get spark runs dies then I will have no spark I'll let it sit over night then it will start run for verious times when it dies i check for spark yet again no spark the timing fine check it earlier today new knock sensor nothing seems to work has just about all new sensor common knowledge it should be running coil has power it get spark runs dies then I will have no spark I'll let it sit over night then it will start run for verious times when it dies i check for spark yet again no spark

I have exchanged the Coil 3 times I know its good it a lifetime warranty it just don't make sense to get spark from the coil it run for a few mins then die check spark from coil nothing let sit for an hour sometimes it will regain spark sometimes it won't when it does starts right up then lose spark and die what controls spark out of the coil it has a new ignition module it came with the distubitor wires from the icm run back to the ECM the ECM has been replaced so has the ignition switch wires from the coil run to the icm and the other run to the ignition switch and the tachometer . Think something could be shorting out my coil but what? In theroy it should be working I have exchanged the Coil 3 times I know its good it a lifetime warranty it just don't make sense to get spark from the coil it run for a few mins then die check spark from coil nothing let sit for an hour sometimes it will regain spark sometimes it won't when it does starts right up then lose spark and die what controls spark out of the coil it has a new ignition module it came with the distubitor wires from the icm run back to the ECM the ECM has been replaced so has the ignition switch wires from the coil run to the icm and the other run to the ignition switch and the tachometer . Think something could be shorting out my coil but what? In theroy it should be working