i'm not sure if this is the right place to post this but here goes.
when i first bought my 94' z my garage door opener worked fine.press button door went up.then it started taking a few more presses then stopped working.i replaced it with an aftermarket remote door opner and it does the same thing.heres the strange part.it only happens when my car is running.remote works in wifes car runnning or not.works with my car engine off and the key on but not when the engine is running not even if i stand outside the car with the remote...what could interfere so bad that it would do this ????

 

this same thing happend a while back on my moms car it turned out that her spark plugs where causing the interferance. This is probably the problem.

Brian

 

was there a fix for it other than replacing them ?
i just put new ones in a few months ago

 

she had to get them replaced

brian

 

Possibly the spark plug wires.