ignition problem

[Jay Zarcadius]

I have a N/A '91 Laser RS, and yesterday while i was driving it on the highway i was doing about 65 which is about 3k RPM. well after a little while the engine sounded like it got bogged down, RPM dropped to about 1500, and it tripped my engine light. luckily in my schools auto shop they have a scan tool that will plug into my car, so i checked the code and it said it was the ignition coil. well i got a another coil pack for the car, tested it to make sure everything was good and it checked out fine. i put it in and the car started right up. since i thought it was fixed a started heading home and after about the same distance it happened again. car runs terrible, i'm pretty sure its only on 2 cylinders, idles at about 300, etc.

I'm hoping that this has happened to someone else and they can give me some advice, because i dont want to get another coil just to blow a third one when i plug it up. there has to be something causing them to go out like that... any suggestions?

 

[C3L1CA]

How new are the spark plugs and spark plug wires?

I'd try replacing those first if they are old.

 

[Jay Zarcadius]

Plugs are less than a month old. i've had the car since june and have not replaced the wires, but they look pretty new and i ohm'd them out and they all tested okay.

 

[blcknspo0ln]

You're the 5th post today about this stuff!

Check your power transistor or just swap it out.

http://www.dsmtuners.com/forums/articles-electrical-wiring/229419-how-test-power-transistors.html