TwinTurbo.NET: Nissan 300ZX forum - No load miss...
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Subject No load miss...
     
Posted by MaxxAction on November 05, 2012 at 3:45 PM
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Message Hey guys...

I a miss, intermittently, and it is not even a dead miss. Like itll idle along smooth or one or two seconds then, miss on one for one or two revolutions, then smooth out, then miss slightly. Light Revving with no load it becomes a little more pronounced, but as soon as a load is placed on the motor, the miss goes awy.

Boost leak test is good, better than its ever been, no leaks anywhere up to 10 lbs. No codes. New plugs, 7 range iridiums. All injectors ohm out perfectly. Compression is 162-166 across all 6. New head gaskets. Tried different ptu's, cas, mafs. The only thing i havent tried is the coil packs, cause i dont have any spares, and the iacv.

I do notice that the iacv is kinda laggy and while it should be registering at about 12 when the car idles, it sometimes hangs at 15 or 16 at idle when i am watching it on datascan.

Anyone with a bad iacv have symptoms like mine?

     
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