TwinTurbo.NET: Nissan 300ZX forum - Ok Got timing Set at 15 degrees but getting rough idle
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Subject Ok Got timing Set at 15 degrees but getting rough idle
     
Posted by blkrocket on January 14, 2011 at 12:22 AM
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Message OK so I have been troubleshooting a rough idle issue. I check the EGR (Good), AAC Valve Assembly (Seems to work fine), Injectors are clicking and all vacuum hoses are in good shape.
I do not know how to set the AAC Valve correctly though. Spark plugs are NGK PFR6B11 (Seemed OK but could be dry carbon on them - will check again after running the car).
The weird thing is that the timing will periodically jump from 15 to 30-35 degrees when the car is all warmed up. Anyone know why this is this happening?

     
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