Hey, will running a system in a 93 grand am mess up the coils that run to the spark plugs? My car wont idle but when i hit my gas it will run. when it idles, it runs shaky and stalls. any help would be appreciated.
If this happened before you hooked your system up it could be a ton of different things. If you have a V6 or anything else for that matter you may have a lose spark plug wire which would cause it to run shaky at idle and not that bad at higher rpms. Try the spark plug wiring first.