I had issues with my car a while back, and I'm finally getting it out for the summer and was curious. My old mechanic (he was awefully shady, did some shady work) said that I was having issues with the wiring harness on my engine. I'll be honest, I'm no mechanic, however, I'll assume he is talking about my wires going to the coils? For what its worth, I've had my coils redone because I was having issues before. My engine will still tremor once in a while, and he (ex mechanic) said that one of my cylinders wasn't firing reliably. Has anyone had any experience with this, or anything like it?