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Posted

Ok so there is no longer a misfire. It has a slight hesitation under load it does go up to about 35-40 mph now since fixing the exhaust. Still can not figure out this hesitation/big down....I'm thinking either faulty MAF or IAC

Posted

IAC stands for Idle Air control, it does not function above idle speeds. So not likely that.

 

As a test you could unplug the MAF and see if it runs any different. It should default to a MAP based control instead of the MAF/MAP combo.

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