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Old 06-27-2009, 05:17 PM   #1
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Rough Idle?

Sitting there at idle after it warms up, you get a rough idle.
Sputters a little but maybe like a fraction of a second.
Then it runs to a smooth idle. Does this constantly when at idle.
AC is off.
Just wondering any one else has this issue?
If so is it normal or what is it?

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Old 06-27-2009, 06:48 PM   #2
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Not sure if it's normal, but I experience the same thing. I'm not really worried about it.

It seems to happen when I've been driving for a pretty long time (1Hr +) or been driving pretty hard for a good stretch of time. I'll stop at a light and it will slightly feel as though the car wants to cut out for a fraction of a second a few times, but then smooths out and stays calm. Just happened to me today actually.

I had the AC off and full tank of gas. I'm just guessing it's because of the mix of hot weather and driving hard.
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Old 06-28-2009, 08:20 AM   #3
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Have you changed your plugs to the iridiums?

Smooths it right out.
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Old 06-28-2009, 11:09 AM   #4
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Quote:
Originally Posted by CDNSRT4 View Post
Have you changed your plugs to the iridiums?

Smooths it right out.
Ding, this is the correct answer.

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Old 06-28-2009, 01:02 PM   #5
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X3 , change the plugs

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Old 06-28-2009, 07:17 PM   #6
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Quote:
Originally Posted by CDNSRT4 View Post
Have you changed your plugs to the iridiums?

Smooths it right out.
Changed already about 600 miles ago, 3200 mile on it now, but it did it with the stock plugs too

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Old 06-28-2009, 09:16 PM   #7
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yea my car does it too, have step colder iridium gapped at .031

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Old 06-29-2009, 05:31 AM   #8
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Quote:
Originally Posted by WOT View Post
Sitting there at idle after it warms up, you get a rough idle.
Sputters a little but maybe like a fraction of a second.
Then it runs to a smooth idle. Does this constantly when at idle.
AC is off.
Just wondering any one else has this issue?
If so is it normal or what is it?
Mine has always been that way, even took it back to the dealer last year after I got it to have them check it out. They said they couldn't find a problem with it. Ihave even changed plugs like 4 times already. Recently put in the one step colder with MS1 and still does it.
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Old 07-01-2009, 03:30 PM   #9
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ok...I have the colder range plugs, but right now all I have is the inlet pipe from ptp. I have the map/tip but I am waiting for the wide band, scan gauge, WGA. injectors, and DP. I have read all over about the "right" gap. is there a point in putting the plugs in now?
thanks!
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Old 07-01-2009, 03:33 PM   #10
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mine spudders every now and thenm nothing major..

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