Misfire on hard acceleration

mywhite89

Registered User
On my 89 5-speed I was having an abrupt misfire that only seemed to occur in 3rd gear on hard acceleration. I thought about spark plugs but it didn't happen in 1st or 2nd gear just under heavy load in 3rd or maybe higher gears which I didn't explore. I decided to throw a coilpack on it since I had an extra. That fixed it, problem is gone. Thought I would share my findings.

Chris
 
Just keep in mind, by changing the coil pack you did some things that you could have tried first, without replacing the part.

I.e. Reseat the connector to the coil pack from the wiring harness - Reseat each spark plug on the coil plug sockets. Check and make sure a good ground is established at the coil pack.
 
Just keep in mind, by changing the coil pack you did some things that you could have tried first, without replacing the part.

I.e. Reseat the connector to the coil pack from the wiring harness - Reseat each spark plug on the coil plug sockets. Check and make sure a good ground is established at the coil pack.

Good point to the wise.
 
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