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Inconsistent fluctuating idle when stopped. (video)

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Old 08-09-2011, 05:04 PM
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Inconsistent fluctuating idle when stopped. (video)

2004 GT Manual
45k Miles
92/93 Octane always
Conventional Castrol oil changes every 3k miles.
AFE Shift Kit
Mazdaspeed dual-canister exhaust
Everything else is stock


A couple weeks ago, I came to a stop at a light and noticed my idle was fluctuating from ~1000 to ~1600 back and forth. I could get it to stop (sometimes) by giving it a few good revs.

This only seems to happen every so often; definitely not every time I drive my car.

The higher revs i'm doing in attempts to get it to go back to normal. Any idea's? It doesn't seem to be negatively affecting anything that I can tell.

http://www.youtube.com/watch?v=LWUSp0fUBYQ
Old 08-09-2011, 05:18 PM
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neutral switch.
Old 08-09-2011, 05:20 PM
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Originally Posted by Jedi54
neutral switch.
The Jedi speaks the truth ...
Old 08-09-2011, 05:20 PM
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Did you ever clean your MAF and IAT sensor? If not, you might want to give that a shot.
Old 08-09-2011, 05:20 PM
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Looking into that now, thanks guys.

Googled: site:rx8club.com neutral switch

Lots of reading.
Old 08-09-2011, 05:21 PM
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Originally Posted by dynamho
Did you ever clean your MAF and IAT sensor? If not, you might want to give that a shot.
Forgot to add that. They're clean.
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