What other parts do I need to check before installing the new ECM (besides the IACV)

Question

I have already replaced the IACV and ECM didnt know they are to be done at the same time...$400 later...I am about to replace them AGAIN. What other components or parts should be checked before installing the new ECM. I don't want to fry it ...

Thanks in Advance

Answer 1

Hi there,

It's important to use the factory IAC on this or you could burn out the new ECM.

Also, a rough idle could be caused by a intake manifold vacuum leak and a bad maf sensor.