Mustang Evolution Forum banner

1 - 12 of 12 Posts

·
Registered
Joined
·
31 Posts
Discussion Starter #1
If I rev up my car the rpms only come down to about 1500 to 2000 rpms. Stays there for Bot 7 to 10 seconds and then drops down to idle. Does anyone know why this is?
 

·
Registered
Joined
·
903 Posts
Clean throttle body maybe...
 

·
Pete Jones
Joined
·
781 Posts
Check your throttle cable spring, might be sticking a little bit, also could be a tps issue but normally that also causes rough idle with the rpms surging up and down at idle. Could also try cleaning your idle air control valve to see if that helps any.
 

·
Registered
Joined
·
31 Posts
Discussion Starter #4
Sting is good. It opens and closes fine. Dident take off throttle body but lookenin it and it does not dirty or gunked up

---------- Post added at 10:44 AM ---------- Previous post was at 10:43 AM ----------

And when I first start it the rpms go way up and down for a bit
 

·
Banned
Joined
·
8,779 Posts
Usually it is a bad TPS or your 10-Pin connector is not making good connection.

See this post for a link to more information.

Useful Mustang Information
 

·
Banned
Joined
·
8,779 Posts

·
Registered
Joined
·
3 Posts
Idle control sensor sounds like its bad, try carb or throttle cleaner, take it off the throttle body and spray it inside, if not get a motor craft one from the dealer or 50 resto online it's about $100-120. If you get and idle surge constantly it's your mass air flow sensor.

---------- Post added at 08:06 PM ---------- Previous post was at 08:01 PM ----------

Disregard what I said! Tps that's new to me, didn't know that would keep you revs up, I guess having the wrong voltage will cause that.
 
1 - 12 of 12 Posts
Top