[Diy_efi] Erratic Idle

[Ben & Cecilia Pena]

I have a 90 Sububan 4X4, 5.7L >160k mi, TBI. I am experiencing an erratic 
idle problem. When cold it idles ~1000 rpm, once it gets hot and is driven 
the idle goes to ~750. The problem shows up after driving a while the idle 
will go back to 900-1000 rpm, if at a stop light, it will settle back to 
650-700 in drive. I was wondering if anyone had any ideas? I have a laptop, 
cable, and the winaldl program so I can hook up and collect data, would this 
be useful? Any help would be greatly appreciated. Thanks, Ben




_________________________________________________________________
Add photos to your e-mail with MSN 8. Get 2 months FREE*. 
http://join.msn.com/?page=features/featuredemail


_______________________________________________
Diy_efi mailing list
Diy_efi at diy-efi.org
http://www.diy-efi.org/mailman/listinfo/diy_efi