[Diy_efi] RE: Swaping 1225550 crossfire with 1227747 (correction)

[Greg Parmer]

Is the VSS hooked up? Did you take a road trip? IAC resets itself at a certain
speed (35mph?) so it can find "zero". There is also a way to reset it via the
ALDL (which is at least a stop gap fix) I think, but the preferred method is to
use VSS so other ECM functions can also work.

If you've already done that...I dunno. I'd verify with a scanner that the VSS is
doing what you think it's doing.

-greg


> -----Original Message-----
> did you reconfiqure the IAC steps?  CF used two IAC's while the 7747
> assumes only one.  not sure if that is the issue but it is worthy of
> taking a look at.
> 
> -----Original Message-----
> 
> Just wanted to let the forum know I finished the ECM swap out and it
> worked
> great, started right up and ran fine.
> 
> Thanks for all the help various folks gave me along the way.
> 
> Only one question remains; initially when the engine first started up
> the
> idle was high about 1800 rpm and as the engine warmed up the idle
> stepped
> down to about 700, which was great. Now the idle stays high at about
> 1800
> rpm even after the car is driven around. .
> 
> Any suggestions as to what could be going on here.
> 
> Thanks,
> Chuck
> 
> 
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