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Old 07-05-2011   #1
manhattanmustang131
 
Location: westchester
Posts: 230
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NYM Trader: 1
Default Missing at idle RPMs

I have a terrible missfire that shakes the car at idle RPMs and the engine, overall, is lacking in power.

1994 5.0, bolt-ons, supercharger and brand new equipment to support it....

That's where I'm really stumped; all new plugs, wires, injects, fuel pressure regulator, MAF, spot-on tune. The car ran PERFECT for months leading up to this.

I checked for vacuum leaks and loose cables at lunch, to no avail.

What do you guys think?
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