Hanging Idle

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pcarosel

New Member

Oct 9, 2009

5

0

0

Oct 9, 2009

#1

• Oct 9, 2009

• #1

I have just completed a 331 build in my 1995 mustang here is a brief rundown AFR heads Trick flow intake x 303 cam 75MM BBK throttle body 5 speed MSD dist 10-1 compression. The motor surges to 2000 and comes down slowly to 900 The car hangs between shifits and the idle is poor, The car has been at the tuner for a week still the same any suggestions very frustrating can't drive as it stalls.

 

final5-0

Mustang Master

Apr 6, 2003

6,817

12

79

DFW Texas

Oct 9, 2009

#2

• Oct 9, 2009

• #2

If you don't have any mechanical stuff goin on such as v leaks,
faulty parts such as isc and the like

then ... the next q would be .......

Do ya have confidence in this tuner

Did he give it back to you in that condition with no explanation

Grady

 

P

pcarosel

New Member

Oct 9, 2009

5

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0

Oct 9, 2009

#3

• Oct 9, 2009

• #3

Haing idle

Grady

Tuner still has car had is for a week. Put in new ecu still hangs and stalls What is ISC this is my first computer build Everything on this build is new except original 302 block bored .030. This is the second tuner the tuner that the car is now at thinks it may be in the throttle body he changed my 75mm BBK and put on a ford motor sport can't road test rain in mi and he was closing for the weekend

 

P

pcarosel

New Member

Oct 9, 2009

5

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0

Oct 9, 2009

#4

• Oct 9, 2009

• #4

Grady


Looks like you have a 95 any of the same problems??? We purchased this car new family car that is in show room cond spent$$$$$$$$$$$$$$$$$ on bulid fast but won't idle hangs ans somtimes will stall





331
x303 cam

AFR 185
Trick Flow Intake
BBK 75MM TB
MSD 5 speed 373

 

final5-0

Mustang Master

Apr 6, 2003

6,817

12

79

DFW Texas

Oct 13, 2009

#5

• Oct 13, 2009

• #5

ISC is idle speed controller

Yes I also got a little 95GT

I self tune ... so ... Any problems I got with my tuner

Well ... Lets just say ... He always does things ... My Way

Grady

 

Don 95Vert

Founding Member

Oct 1, 1999

1,091

1

39

Delaware, OH

Oct 14, 2009

#6

• Oct 14, 2009

• #6

Like was aid the main cause is usually a vacuum leak. The second main cause is that the IAC is at or near it's limit of travel, usually because of a new TB - for that, set the TB to factory idle spec and do an IAC and TPS reset.
Don

 

hipluther01

New Member

May 29, 2011

2

0

0

western ky

May 30, 2011

#7

• May 30, 2011

• #7

Im having the same problem. When I hit the clutch at 2500 RPM it will idle up to about 3200-3500RPM for a couple seconds and then idle down. What is the IAC and how do you reset it?