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High Rev misfire

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Old 02-11-2005 | 01:55 PM
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Default High Rev misfire

my mates cossie has started miss firing at between 5000 -5500 rpm when driving hard.
we have changed - Fuel Pump Relay, Coil, Leads, Plugs looked Fine, Crank position sensor, dizzy cap and arm
does anyone know what else it could be? it only does it when warm as well
cheers
Old 02-11-2005 | 01:57 PM
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Boost blowing the spark out?

Try a Grp A coil or alter the plug gaps
Old 02-11-2005 | 02:58 PM
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thats bad ass that u cant do that to a ford escort !!!!! buck ya ideas up arse hole!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Old 02-11-2005 | 02:59 PM
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Old 02-11-2005 | 03:14 PM
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Originally Posted by tizzer0
thats bad ass that u cant do that to a ford escort !!!!! buck ya ideas up arse hole!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Old 02-11-2005 | 03:15 PM
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Originally Posted by tizzer0
thats bad ass that u cant do that to a ford escort !!!!! buck ya ideas up arse hole!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
YEAH!!

WTF
Old 02-11-2005 | 03:17 PM
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Old 02-11-2005 | 03:37 PM
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If you're using 071 plugs, check the caps where the leads clip to are tight

Neil.
Old 02-11-2005 | 04:09 PM
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Get it checked by a pro, could be det... I had EXACTLY the same
Bought it up through the gears 5th sliight missfire, thought "Hmmmmnnnn thats strange"... lifted off, to see a HUGE plume of smoke in the rear mirror and an engine running on 3
Old 02-11-2005 | 04:23 PM
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Originally Posted by essexrsturbo
Originally Posted by tizzer0
thats bad ass that u cant do that to a ford escort !!!!! buck ya ideas up arse hole!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Check his post history
Old 02-11-2005 | 05:41 PM
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Originally Posted by tizzer0
thats bad ass that u cant do that to a ford escort !!!!! buck ya ideas up arse hole!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
wtf
Old 02-11-2005 | 05:44 PM
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phase sensor in the dizzy
Old 02-11-2005 | 06:33 PM
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does it do it in every gear? i'd try gapping the plugs first fefore i spent any money.
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