Ok guys so far I have replaced the opti, the coil, the plugs and wires. I have removed the cats and replaced them with straight pipes. I also replaced all of the grounds with 0 gauge wire, and the car is still bogging once it warms up. I can drive it to the store and it will run fine aslong as its cold, but once it warms up it boggs bad. Sometime to the point where it stalls out. It will crank right up, and once you put it in drive and start moving it boggs again. I have tried resetting the ecu several times thinking maby that would fix it and it hasnt. So i have a few questions .

1. How do i test the ignition module?

2. Could the opti be bad already? i just replaced it a month ago.

3. I did a compression test on it when it was cold and got good numbers. I was told that when it warms up the compression will drop some due to expansion of the metal and could it expand enough so that most of the compression was gone and it cause the problems that i am experienceing?\

4. Could this problem be sensor related? its not throwing any codes and when i scan it it doesnt have any stored.

thanks for the help guys.

 

are you using any scan software, like turbo link? There is a free program out there too. Reason i'm asking is that my car acted a little rough and i was realtime scanning the voltages off the O2 sensors and i noticed they wer eout of range so i went ahead and replaced them and it fixed the problem.

 

no i havent. i have a o2 sim now since there is no cats

 

This is very common, especially on us 94' model guys. It is one of the sensors(TPS, 02, MAF, MAP, IAC, PCM Temp. Etc.) if your opti. and plug wires are good. Problem only happens in closed loop. You may have to replace one by one if it does not throw a code.