Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Using TBI fuel pump with return reg on carb
View Single Post
  #6 (permalink)  
Old 02-22-2012, 09:04 PM
LATECH's Avatar
LATECH LATECH is online now
Hotrodders.com Moderator
 

Last journal entry: Motor - vator
Last photo:
Join Date: Jul 2010
Location: Northeast Pennsylvania
Posts: 5,437
Wiki Edits: 0

Thanks: 230
Thanked 296 Times in 275 Posts
Quote:
Originally Posted by FmrStrtracer
If you are running the pump off the original EFI circuit, the computer shuts the pump off after a short run unless it see's a tach signal that tells it the motor is running.
That is true on a ford, but this is a 06 chevy, oil pressure switch maintains the power to the pump after the prime signal from the pcm.
chrysler also uses the tach signal for keeping the ASD and fuel pump relays energized.
Reply With Quote