4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

Idle issue?

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Old 05-04-2013, 06:04 PM
  #1  
MotorCitySaleen
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Default Idle issue?

I have a 2000 Saleen with 82000 miles that has recently started to have some idle issues. It started to have an erratic idle after i put on a CAI. It also has a TB spacer,and an O/R H pipe and has a custom tune. I cold start it and it goes up to 2000 rpm for a couple sec then almost stalls then goes back up to 2000 rpm before it settles down at around 900 or so, then a strong smell of fuel is present. Then after a few minutes its idle is lopey like it has a cam? It also gets hung up on 2000 rpm or so at lights for bout 3-4 seconds then idles lopey PLEASE HELP?????????? Everything is on correctly
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Old 05-05-2013, 08:40 AM
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Luke13
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Definitely re check all the connections leading to your intake, throttle body, and intake plenum. I had the same problem when switching to a BBK throttle intake. I forgot to hook a hose up on the back of the plenum, made the same problems you're having.

What kind of h pipe and tune did you get? Are the o2 sensors still installed? Any check engine light on?
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Old 05-05-2013, 02:08 PM
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MotorCitySaleen
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Its a Pypes h-pipe with the MIL eniminators and a SCT/BAMA tune from American Muscle. This problem was before those parts though.
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Old 05-05-2013, 09:21 PM
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SXGT
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is it possible you have a small vacuum leak?
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Old 05-07-2013, 09:39 PM
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MotorCitySaleen
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I was thinkin that too..............But i looked everywhere and cant locate one? Is there an easy way to find it that anyone can recommend? Im a novice mechanic so any help would be appreciated.
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