i just got an msd opti & new plugs and wires in the past month but now my car is stumbling at idle, sorta like when the opti was goin and at wot it stumbles then goes then stumbles.....im clueless. at idle it idles then like skips a beat and fluctuates about 100 rpm up and down for a second. anyone have input i would GREATLY appreciate it, thanks

 

I have seen the coil wire do this. Make sure its full connected on both ends as well as all the plug wires.

 

*off topic*
How much did that opti run you? Was that the new msd system complete?

 

thanks for the wire advice.....and the opti ran me $159 canadian, plus the base which was around the same if i remember correctly....its cheaper than the gm cap and rotor, looks much better too but its not too easy to see it. but again thanks for the advice