Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - 1990 Chevy TBI runs very rich
View Single Post
  #11 (permalink)  
Old 09-07-2012, 02:41 PM
T-bucket23's Avatar
T-bucket23 T-bucket23 is offline Moderator
Last wiki edit: Engine basic condition - how to check Last photo:
Join Date: Aug 2005
Location: Massachusetts
Age: 59
Posts: 6,422
Wiki Edits: 26

Thanks: 34
Thanked 359 Times in 304 Posts
My bet is the coolant sensor. I have replaced a bunch of them. I think when open they default to -20*f.
Before you go dropping the tank, check at the harness near the tank for power and ground. It is very common for the connectors to fail and the grounds to rot off the frame. I have an old headlight I use to check for power, a test light does not draw enough current to show a bad connection all the time.
Artificial Intelligence is no match for Natural Stupidity

Reply With Quote