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Old 21-04-2010, 06:23 PM   #1
AU3XSR
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Default Random Rough Idle

Hi guys

Over the last couple of days the AU has started to develop a weird idle quirk. Whenever D or R are first engaged the idle speed drops down to around 400 rpm and runs really rough for a couple of seconds before spiking back to its normal speed between 600-700 rpm. The car also does exactly the same funny idle speed thing when I am braking and just about to come to a complete stop. Other than that she seems to run perfectly fine...

From searching on here I've found suggestions that the problem could be related to stuff like the ISC valve (which was cleaned a few weeks ago), coil pack etc. I'm gonna try an ECU reset to see if that may help...

I was wondering if there are any solid ideas on what this could be or if anyone has come across this before???

Cheers
Matt

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Old 21-04-2010, 11:00 PM   #2
skelly
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mine does the same kinda, exept mine is a manual, and when i start it up it drops down to low *** revs for a few secs then gets up to normal revs.
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Old 22-04-2010, 11:21 AM   #3
vbomber
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Sounds exactly the same as my car, if I go into R it drops, into D no, but occasioanly when Im idling it will drop and braking
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