94 mustang irratic idle

derrick2119

New Member

Mar 10, 2009

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0

Feb 6, 2010

#1

• Feb 6, 2010

• #1

i have an irratic idle it bounces around from 1000 rpms at idle to as low as 500 rpm. Sometimes it even dies. I have my timing set at 10 degrees ATC. Have a ford racing E cam port and polished heads and intake no emission controls. I just replace the Idle/Air control valve thinking that was the issue but it wasnt. any ideas?

 

HISSIN50

"How long does it take to get help in here?

15 Year Member

Nov 29, 1999

31,179

34

129

Feb 6, 2010

#2

• Feb 6, 2010

• #2

Might wanna double check that timing.

Pull codes.

Look for a vacuum leak.

Good luck.

 

7upstang91

10 Year Member

May 30, 2008

936

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Florida

Feb 6, 2010

#3

• Feb 6, 2010

• #3

Pull codes +1. There is a idle checklist on the stickys.

 

derrick2119

New Member

Mar 10, 2009

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Feb 6, 2010

#4

• Feb 6, 2010

• #4

no vaccum leaks...only code is egr not opening and fuel pump relay malfunction?

 

7upstang91

10 Year Member

May 30, 2008

936

124

74

Florida

Feb 6, 2010

#5

• Feb 6, 2010

• #5

derrick2119 said:

no vaccum leaks...only code is egr not opening and fuel pump relay malfunction?

Click to expand...

Bad EGR, about $91 dollars at Advance Auto, just replaced mine today.

 

derrick2119

New Member

Mar 10, 2009

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Feb 11, 2010

#6

• Feb 11, 2010

• #6

i no longer have an egr,smog pump,or cats...