Ford Mustang Forum - View Single Post - ck eng lite on, no cats, lag on cold acceleration
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post #5 of (permalink) Old 01-03-2006
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Joined: Nov 2005
Location: Lancaster, NY
Posts: 56
Originally Posted by kscoyote
could also be the IAC acting up & keeping the "choke" on . . . Idle Air Control valve.
Sorry for budding in this thread...but when I saw this - that's the exact problem my stang is having (im pretty sure at least).

When the car is warm and I come to a stop, the engine will sometimes dip down to below 500rpm, and sometimes even stall on me. It seems to happen more when I take the car out of gear without using the clutch. (Is taking it out of gear w/out the clutch bad for it?) But it will happen even if I use the clutch sometimes, too.
If it is the IAC, how would I diagnose and/or fix it?

On a side note, it's a '02 3.8L w/17k on it and K&N FIPK2. Rest is stock.
Thanks!! :thumbsup

2002 Sonic Blue v6 5-speed
Mods: K&N FIPK2 CAI, Motoblue 42% UDP, Steeda Tri-Ax, next up - time for a new clutch I think and a lightweight flywheel if I can find a relatively inexpensive one...
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