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Discussion Starter · #1 ·
I have conducted extensive search here and made repair attempts without success.<br> 2004 v70 2.5t<p>Last night after returning home, I pulled in driveway and I noticed rough idle while in park. After a few moments of acceration in park, CEL came on. I shut engine and went in for the night.<p>Today I scanned codes with OBD scannder which has been helpful in the past, however no codes detected.<p>Symptoms are rough idle while in park. Engine very jumpy, CEL on.<p>After searching forum, I installed new MAF and checked all coil packs with no luck. I also unplugged battery for a while and no change.<p>Any indication on what the problem might be?<p>Recent maintenance: TB, Serp Belt, New PCV system, clean throttle body and replace gasket, new radiator.<p>I have noticed the throttle body is humming quietly after engine turned off and key removed. Don't remember if it always did.<p>Please help if you can, thanks!<p>-Rob
 

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Re: Rough idle , stalling, CEL but no code. (04v70)

Any chance TB slipped a tooth???? Also engine seems to be running with reduced power when going down road.
 

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Re: Rough idle , stalling, CEL but no code. (04v70)

Fuel Filter?<p> <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/cool.gif" BORDER="0">
 

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Re: Rough idle , stalling, CEL but no code. (Steely)

Car went to a VIDA equipped Volvo indy this morning. Will report back with findings.
 

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Re: (hethaerto)

So i heard back from the garage today. After VIDA hookup and some diagnosing, it was determined I had a faulty VVT reset solenoid on the intake cam. According to the shop, the car is now 100%. I will pickup tomorrow and am looking forward to having the Volvo back.<p>Hope this helps anyone with similar symptoms.
 
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