engine wont idle

stykthyn

I want to measure mine. It doesn't look that tall.

15 Year Member

Jul 6, 2006

5,232

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gainesville

Jul 11, 2006

#1

• Jul 11, 2006

• #1

ok I bought my mustang last week and it wouldnt idle. I started by checking all the sensors and I found that when I disconnected the MAF the car would idle close to normal. Thinking there was a faulty MAF I bought a new one, but as soon as I plugged it in the car died again. What is the deal. I tried pulling the codes, but I am not very good at it the two best matches I got were faulty DIS and EGR not opening, EGR voltage too low. any ideas where to start?

 

2000silverbulit

New Member

Mar 30, 2005

31

0

0

Dublin/Walnut Creek, CA

Jul 11, 2006

#2

• Jul 11, 2006

• #2

the IAC ... what year stang is it?

 

stykthyn

I want to measure mine. It doesn't look that tall.

15 Year Member

Jul 6, 2006

5,232

2,652

223

gainesville

Jul 11, 2006

#3

• Jul 11, 2006

• #3

pulled it and cleaned it out with carb cleaner, may try soaking it in acetone over night, but I still dont think that is it, I should have seen an improvement from the first cleaning.

 

stykthyn

I want to measure mine. It doesn't look that tall.

15 Year Member

Jul 6, 2006

5,232

2,652

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gainesville

Jul 11, 2006

#4

• Jul 11, 2006

• #4

oh yeah 93, has 107k on it

 

16vstang

New Member

Oct 8, 2004

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Way up in Maine

Jul 11, 2006

#5

• Jul 11, 2006

• #5

Try unpluging the egr and se what happens.

 

stykthyn

I want to measure mine. It doesn't look that tall.

15 Year Member

Jul 6, 2006

5,232

2,652

223

gainesville

Jul 11, 2006

#6

• Jul 11, 2006

• #6

is is possible to delete the egr altogether? I know that my camaro ran better after I ripped that POS out.

 

snake109

New Member

Dec 2, 2004

60

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0

Austin TX

Jul 11, 2006

#7

• Jul 11, 2006

• #7

i would find out where the voltage is lost in the egr circuit first

 

2000silverbulit

New Member

Mar 30, 2005

31

0

0

Dublin/Walnut Creek, CA

Jul 12, 2006

#8

• Jul 12, 2006

• #8

And the fact that would you imediatly fail SMOG blah blah blah... and thats not the point, it should run fine with it connected so something else is the problem.

If it runs better even for a bit with the cleaned out IAC then you know that is the problem, I had to change my IAC at 70k and havent had a problem since

if it would jump revs with the clutch in or sometimes sitting at a light it would die, esp if you tried to use accesories.. then its prob the IAC

 

stykthyn

I want to measure mine. It doesn't look that tall.

15 Year Member

Jul 6, 2006

5,232

2,652

223

gainesville

Jul 12, 2006

#9

• Jul 12, 2006

• #9

I found the problem, there was a small vacuum hose the size of a coffee stir that had come in contact with the valve cover and melted through. the was enough hose to re-route and after I reset the idle everything is golden. Thanks guys