JimF, I am honored to have participation from you, I am an admirer of your website info. and a purchaser of products therein.

Everything has been perfect since the wheel size match........ I use the car for frequent trips between Houston and NewOrleans... the taller side wall is intended to maximize ride comfort. I calculated 2mph differance at 60mph, this is acceptable. I have driven about 100 miles around home to look for problems, I am code free, even the idle issue has dissappeared.

I just didnt associate my problems with tire size since I had just replaced the engine.... I spent many hours tracing down my "errant" ASR issue that wasnt.

thanks again