I.A.C. Motor RPM too High?

[VCobraV]

My Check Engine Light keeps coming on when I WOT? I've replaced the I.A.C. Motor with a OEM Motor Craft one. The light went out but keeps coming on again. When I hook up the scanner it always says the same thing. I.A.C. Motor RPM too high? Just wondering if anyone has had the same problem?

 

[MOTOWN]

After you replaced the iac did u disconnect the battery for a few minutes to clear the trouble code from the ecm?

 

[RacerX]

What is your actual rpm at idle in D and N?

 

[VCobraV]

After you replaced the iac did u disconnect the battery for a few minutes to clear the trouble code from the ecm?

Yes, I cleared it with a scanner, I also have unpluged the battery over night.

 

[cougar9150]

Whats the actual mileage on your car? Just wondering if your intake may be dirty and the ports for the IAC are clogged or have build up to the point where it may act similar to a bad IAC.

 

[VCobraV]

What is your actual rpm at idle in D and N?

Ok in N its at 900 RPM, and in drive its in between 600 and 700 RPM.

 

[RacerX]

Ok in N its at 900 RPM, and in drive its in between 600 and 700 RPM.

I doubt it's your IAC then. That 900 will drop as it relearns also.

 

[VCobraV]

I doubt it's your IAC then. That 900 will drop as it relearns also.

Well when I first start the car the RPM is about 1100 then it takes about 15 sec. To drop to 900.

 

[VCobraV]

I think maybe the TPS is bad?