help
Thread Starter
Heel & Toe
Joined: Mar 2001
Posts: 20
Likes: 0
From: baltimore
help
i just put the 383 engine in and it will not idle it just keeps surging and stalling i have a chip that was burned for my set up . i had the egr valve off so i put that back on that was not the problem. the tps is at .5v. i dont know what else to do . do i have to buy a bigger mass air flow sensor .
86 l98 :crazy:
86 l98 :crazy:
Race Director
Joined: Aug 2000
Posts: 14,130
Likes: 7
Cruise-In II Veteran
Re: help (dave g)
Surging is usually a vacuum leak...if there are no vacuum leaks,you will need to reset the IAC and re-set the minimum air speed and TPS again.
I have found that with my cars,when an engine was rebuilt and some mods were done,it wouldnt run right until I reset the IAC,minimum air speed and TPS again.
This even happened after a full exhaust change,it kept surging and stalling and resetting the minimum air speed,tps,etc fixed it and it ran like it was supposed to.
(I think originally it was off somewhat)
Also be sure the timing is correct and everythings connected.
I have found that with my cars,when an engine was rebuilt and some mods were done,it wouldnt run right until I reset the IAC,minimum air speed and TPS again.
This even happened after a full exhaust change,it kept surging and stalling and resetting the minimum air speed,tps,etc fixed it and it ran like it was supposed to.
(I think originally it was off somewhat)
Also be sure the timing is correct and everythings connected.
Melting Slicks
Joined: Apr 2002
Posts: 3,305
Likes: 2
From: Havelock NC
Re: help (Bill's86Coupe)
That's deffinately a vacume leak. You wouldn't think all of those crazy little hozes did anything, but when you leave one unhooked or leaky it screws everything up. Good luck finding the leak
