Ford Mustang Forums banner

1 - 4 of 4 Posts

·
Registered
Joined
·
1,341 Posts
Discussion Starter #1
Hey - something is up with my idle. I am wondering if my IAC is bad?

When I first start the car it surges like mad. From like 500 - 1200, sometimes it goes low enough it feels like the car is gonna bog and die, then I rev the car to like 4000RPM and let off....then it is fine :confused: When I put the clutch in at a red light, the rpm goes up slightly - so I thought maybe it was a vaccum leak - but I don't see one.

I cleaned the MAF with some quick dry electronics cleaner....it is still doing it.

What is up with this thing - it is pissin me off.

-Rob-
:mad:
 

·
Registered
Joined
·
3,788 Posts
Do a search for surging idle. This has got to be about the most common mustang problem. My bet is that your TPS is set wrong or your EGR is dirty/faulty.
 

·
Registered
Joined
·
1,341 Posts
Discussion Starter #3
Well I installed a new 70mm TB and for some reason we could not get the correct amps that the TB required. I think it wanted between .8-1.0 and I got like .6

When I talked to a few people - they said that should not be the problem.

-Rob-
 
1 - 4 of 4 Posts
Top