Quote:
Originally Posted by gabedrummin
Car is a 2000 Boxster S , had an RDN 3.2 engine put in 40k miles ago 10 k ago Bank one head developed a crack and dumped oil into coolant .Heads were pulled sent to a Porsche head specialist who preformed a pressure test .Repaired head checked vale springs did a valve job. I put the ending together .All new Porsche gaskets , ARP head studs. The engine has not run correctly since then . I took it to a shop around the corner and they said I had multiple misfires . I replaced all the coils twice the plugs mass air flow sensor, air filter (stock) , O2 sensors . Car has no codes .
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Interesting that they say there were multiple misfires yet it shows no codes.
Misfires are usually set on the first occurrence.
So what RPM does the car idle at when fully warmed up and in neutral??
What is the idle like???? smooth??? lumpy??? hunting??? raising and falling???
If the idle is anything other then smooth does the engine smooth out if you hold the RPM at 1500-2500RPM???