There are some O2 readings or something you can download with a scan tool that can help diagnose the AMM. I think there was a thread a week or 2 ago that mentioned that. I suppose you could pay someone to diagnose it for sure. Changing the AMM is simple and I don't think changing the plug wires is too hard although I have not done it myself yet. I think that is what Arthur Dalton was talking about.

Mike

__________________
1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra