anybody??????????? idle prob

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12-13-2008, 01:01 PM

walleyford

Thread Starter

Join Date: Dec 2008

Location: ga

Posts: 5

anybody??????????? idle prob

my mustang has an idle prob.I have a 89gt with a 351 trickflow heads and intake 75 mm tb.ive allready replaced the iac and that dident help.it will go from like 1000 to 2000 down to 500 and over and over again sumtimes it will stop.and sumtimes it will cut the car off sumtimes it will not do it at all.

12-13-2008, 02:13 PM

primetime5.0

6th Gear Member

Join Date: Dec 2003

Location: United States

Posts: 9,587

base idle reset

12-13-2008, 05:15 PM

walleyford

Thread Starter

Join Date: Dec 2008

Location: ga

Posts: 5

u had the same problem

12-13-2008, 07:02 PM

primetime5.0

6th Gear Member

Join Date: Dec 2003

Location: United States

Posts: 9,587

every few months I have to reset mine

12-13-2008, 09:53 PM

LesteR723

5th Gear Member

Join Date: Sep 2005

Location:

Posts: 2,486

how do you do that?

12-13-2008, 10:21 PM

crusin92red5.0

3rd Gear Member

Join Date: Jul 2005

Location: sleeping with the enemy

Posts: 998

pull the IAC plug off (connects to throttle body) then start the car, back the screw on the throttle body(get to it on the back side of throttle, aftermarket bbk is a allen head) down to 700 or so. turn off the car and plug back in.