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I only know of one. The TPS, but mine is working fine. I don't know that it is the ECU and mine isn't fried. Cyl 1 isn't working. I'll find out if it is fuel or spark this weekend, but everything was replaced on the spark side of things, injectors were cleaned, a rebuilt head. The only reason I suspect the ECU is because when I unplugged the battery after setting the base timing, it ran perfect, and then later it ran like crap again. Pretty much running on 3 cylinders. It is not mechanical. Compression is 155 on problem cylinder.