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Old 09-24-2006, 01:51 AM   #1
crashtke
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Member#: 120912
Join Date: Jul 2006
Chapter/Region: South East
Location: Atlanta, GA
Default knock at idle only?

I finally got some logs of my car and it seems I have the occasional knock at idle...not at any other load or RPM, just at idle. This seems to correspond with a slight rise in RPM's and a bit more of a lean condition on the WB 02. Any idea? Car is just stage 2 cobb with full TBE and catless UP. Also has a new TMIC, but has been exibiting the same since before the TMIC.
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Old 09-24-2006, 05:51 AM   #2
Uncle Scotty
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....mine did that too.....dunno why....pulled a bit of timing and it went away
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Old 09-24-2006, 08:56 AM   #3
Bort
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98 OBS

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Mine too. Seems like some kind of transient thing. Perhaps something about the motion or vibration of an idling engine fools the sensor.
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Old 09-24-2006, 03:29 PM   #4
crashtke
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haha, ok...silly, but I just heard from one of our locals that the guy that tuned for him, guy named Scott Seigel out of Subaru of Gwinnett, that it was like a false knock and not to be concerned.
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Old 10-12-2006, 12:24 AM   #5
weggy
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Mine does it too (06 WRX, 500miles). the occasional knock at idle...
I put 93 gas.
Something wrong with my car?
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