[Gmecm] 454 TBI 1988 suburban

jason34 jasonscorvairs
Sun Mar 27 05:01:01 UTC 2005


 Thanks for the info. Is that rpm when its in gear with auto.After I wrote
that email I went and put the new air idle speed motor in and the idle stays
at 950 in park and does'nt go up and down like it was. Runs at 650 in park.
JASON

-----Original Message-----
From: gmecm-bounces at diy-efi.org [mailto:gmecm-bounces at diy-efi.org]On Behalf
Of David Cooley
Sent: Saturday, March 26, 2005 8:03 PM
To: gmecm at diy-efi.org
Subject: RE: [Gmecm] 454 TBI 1988 suburban

somewhere between 650-750
if it has a code for tps too low, the idle will be bumped up.
I'd check the TPS... voltage should be between .5-.75V at idle


________________________________

        From: gmecm-bounces at diy-efi.org [mailto:gmecm-bounces at diy-efi.org]
On Behalf Of jason34
        Sent: Wednesday, February 16, 2005 10:14 AM
        To: gmc tbi
        Subject: [Gmecm] 454 TBI 1988 suburban



        Hi does any one know what the idle rpm should be ? I put a 4 wire o2
sensor in my truck. Now the idle isn't right it seems to fast.I also have a
fault code for the tps being to low. I can't seem to figure whats wrong.I
have A link plus to look up codes and info from computer. If anyone can help
with info that would be great. JASON


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