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Old 11-21-2014, 11:14 AM   #36
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Originally Posted by Strange Mud View Post
this makes me glad your car is shutting off.
He already said he was at a red light. meaning car was at a stand still, so he probably rushed it because he was watching the light. technically, while driving.

so anyway, did you test your IAC? If you unplug it, it should do the same thing, cause it to idle like crap and possibly die out. If thats exactly whats happening, i would think that the iac is crapping out periodically. possibly from engine heat, or just being defective. but worth lookin at closer if nothin else is working.
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Old 11-21-2014, 11:23 AM   #37
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It is probably just this simple

The idle probably needs to be set a tad higher.
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Old 11-21-2014, 12:18 PM   #38
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Fenixignition: these newer mustangs do not have a dedicated hardware component for iac valve. Iac is controlled by the ecu which tells how far the throttle needs to stay open at idle.

I hope he has cleaned the maf and throttle body already. Would be a shame if he is doing all the other fixes but overlooking the easiest things.
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Old 11-21-2014, 12:44 PM   #39
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Fenixignition: these newer mustangs do not have a dedicated hardware component for iac valve. Iac is controlled by the ecu which tells how far the throttle needs to stay open at idle.

I hope he has cleaned the maf and throttle body already. Would be a shame if he is doing all the other fixes but overlooking the easiest things.
hey kevin, thanks, i haven't checked per say, the maf or throttle body. But I will check during lunch (also against a diagram to see where these things are). I'm still learning and there's a lot I need to learn. Thanks for the help and suggestions!
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Old 11-21-2014, 12:50 PM   #40
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For the throttle body, its a butteryfly valve. Where your stock intake box is, follow the air tube to a metal circular device. This is the throttle body. You can unattach the intake tube from it by unscrewing the clamp holding it with a flathead.

To clean the throttle all you need is carb cleaner and a small towel. Spray a little on the towel and wipe down the inside. You may need to use your other hand to open the butterfly valve to clean the other side.

The MAF sensor is screwed into the intake tubing. From your stock airbox, follow the intake tube. On the side facing you, you should see a wire screwed into the intake tube. Unscrew it and take it out. It should look like a flat metal sensor that is maybe an inch or two long. Clean this as well.


Probably clean the maf sensor first in case you plan on using the same towel for the throttle body. Last thing you need to do is gunk up the maf sensor
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Old 11-21-2014, 06:06 PM   #41
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Quote:
Originally Posted by Kevin.Cook View Post
Fenixignition: these newer mustangs do not have a dedicated hardware component for iac valve. Iac is controlled by the ecu which tells how far the throttle needs to stay open at idle.

I hope he has cleaned the maf and throttle body already. Would be a shame if he is doing all the other fixes but overlooking the easiest things.
Oh snap i just realized were not talkin about a 3.8 either, lol. Im out.

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