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missing at WOT

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    Junior Member

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  • Location:Edmonton, Alberta
  • Region:WCMA
  • Car Year:1999
  • Car Number:51

My Spec Miata, 99, starts to miss at about 6500 rpm, in any gear, at WOT.  Not all the time, but often enough.
It may be heat related, OK early in a run, then developing as the engine bay gets hotter, but it is not always that clear, and it does not always happen.

I replaced the coil pack with another used one, and it stopped for two weekends,  but now it is back.
The engine is freshly rebuilt.  The fuel filter was changed at the start of last season.

What are the other possible culprits, are there some well known ones?

Ron Alan

Ron Alan

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  • Location:Northern CA
  • Car Year:1995

Search this site for Cam angle sensor harness plug fix! Classic symptoms!

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