P4 ECM #1227748 questions

rr RRauscher at nni.com
Sat Feb 17 00:11:05 GMT 2001


Sometimes yes, sometimes no. I've seen them where the steps increase
from park after a startup. Can also have park so low that you have hard
starting. It really is a combination & a juggling act.

BobR.

JTesta1966 at aol.com wrote:

> In a message dated 2/16/01 5:28:25 PM Eastern Standard Time,
> RRauscher at nni.com writes:
>
> <<  So all that really happened is the 300rpm I added to the minimum
>  > idle speed, is now added to the high-rpm idle thing that the ECM
>  > seems to be doing.
>  >
>  > Why is the ECM doing this to me??  for some reason, with no
>  > other change apparent to me, the ECM stepped the IAC all the way
>  > out to 2300rpm. >>
>
> You need to find the IAC park position and change it from 120 counts to 90
> counts. That should fix it for you ;-)
>
> ================================================
> Jim (FA) Testa                                 Type86 on buick.fiendish.net
> ASE Cert Master Tech                                 jtesta1966 at aol.com
> L1 Adv Engine Performance                     http://www.turbojim.com

----------------------------------------------------------------------------
To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
in the body of a message (not the subject) to majordomo at lists.diy-efi.org




More information about the Gmecm mailing list