I had the car to dealer to check eratic idle suspecting a second ETM change. They cleaned ETM and claim that exhaust cam timing is out of spec and estimate $600 to repair. The estimate says; "ECM 644A cam control faulty position. Checked T belt markings ok. Cap adaptation opening 1- 1.23 OP 2- .083 OP 3- 2.02 OP 4- 1.41 Spec is 7". Any idea how to interpret this and what the problem is.?? I'm guessing something to do with the variable cam timing mecanism. I guess it requires special tools to make this check.?? Thks. G.
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