cylinders 5,7 misfire after driving HARD??
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Joined: Sep 1998
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From: US 1 Mile Marker 52 in the Florida Keys
cylinders 5,7 misfire after driving HARD??
whenever i drive the car hard...rev it up past 4 or 5k rpms a few times, it will start to misfire at idle.
sometimes this happens a mile down the road from when i was reving it up.
i scan it and only cyl 5 and 7 miss.
i've changed plugs, wires, swapped coils (ls1), installed headers (since it started), swapped around injectors, and cleared teh computer.
now once it starts doing it...it's not constant. it will miss for a few seconds, then smooth out...then miss again...then smooth out...
it does this for a while then just magically fixes itself and runs great till i drive it hard again
i've tried everything i can think of...dealership time...any more ideas?
sometimes this happens a mile down the road from when i was reving it up.
i scan it and only cyl 5 and 7 miss.
i've changed plugs, wires, swapped coils (ls1), installed headers (since it started), swapped around injectors, and cleared teh computer.
now once it starts doing it...it's not constant. it will miss for a few seconds, then smooth out...then miss again...then smooth out...
it does this for a while then just magically fixes itself and runs great till i drive it hard again
i've tried everything i can think of...dealership time...any more ideas?
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