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Should throttle valve angle and igntion timing angle be fluctuating at idle?

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Old 09-17-2008, 03:13 PM
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Default Should throttle valve angle and igntion timing angle be fluctuating at idle?
mine is bouncing all over the place

2.4% is the throttle valve angle but it keeps moving up to 3 and back down etc, and *BTDC keeps changing as well...
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Old 09-17-2008, 03:25 PM
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Does your idle move along with it?
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Old 09-17-2008, 04:44 PM
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I don't think that's your issue. I don't have any idle logs handy with my throttle position, though.
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Old 09-17-2008, 04:51 PM
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well my idle is a rapid fluctuation of 760-800 and it causes misfiring!
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Old 09-17-2008, 04:53 PM
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Default It's not unusual for VAG to read idle fluctuating between 760 and 800 RPM. In reality, it stays ~790
according to my Zeitronix and ECUx IIRC.
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Old 09-17-2008, 04:55 PM
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Default Im going to post a quick video of my car doing what it does. I'll post a in car and exhaust vid.....
so you can hear the misfiring..
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Old 09-17-2008, 05:47 PM
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Are you getting misfire codes?
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Old 09-18-2008, 11:40 AM
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post an idle log of 003
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