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Misfire!!!!!

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Old 02-06-2007, 05:41 PM
  #1  
gearbanger
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Default Misfire!!!!!

ok my car has a very bad misfire above 4,800 rpm. i cant seem to figure out what it is. i looked at all the wires to make sure none are riped i looked at the spark plugs and they seem to be fine. at 4,800 rpm the misfire is so bad the whole car feels like it shakes and i can here it.. if any one has any ideas in wat in can be please feel free to post it up. thamks
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Old 02-06-2007, 06:06 PM
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mattdel
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Default RE: Misfire!!!!!

its timing/spark related. check TFI module, PIP and coil.
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Old 02-06-2007, 06:08 PM
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dimebag
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Default RE: Misfire!!!!!

timing... or need new cap rotor and wires... had the same prob, timing was fine, did those few cheap things and prob solved
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Old 02-06-2007, 06:11 PM
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92hatchLX
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Default RE: Misfire!!!!!

Sounds like you're running lean up top.
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Old 02-06-2007, 06:11 PM
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gearbanger
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Default RE: Misfire!!!!!

i'm just going to mess with the timing and see what happens... what if i got new wires got the timing down to where it's suppose to be and it still does it?
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Old 02-06-2007, 06:14 PM
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nseoi
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Default RE: Misfire!!!!!

+1 on lean, check fuel pressure if your ignition looks good
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Old 02-06-2007, 06:16 PM
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dimebag
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Default RE: Misfire!!!!!

then come back to us and talk, lol..

when mine did it i made sure my timing was at 10*(stock) and got new stock replacement wires cap and rotor... 5-10 min and fixed the problem... try it, hell its cheap and wont hurt to do...
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Old 02-06-2007, 06:17 PM
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gearbanger
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Default RE: Misfire!!!!!

ORIGINAL: nseoi

+1 on lean, check fuel pressure if your ignition looks good
i got fuel pressure atlest thats what my gauge says... if its not one thing its another with this car..
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Old 02-06-2007, 06:18 PM
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gearbanger
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Default RE: Misfire!!!!!

ORIGINAL: dimebag

then come back to us and talk, lol..

when mine did it i made sure my timing was at 10*(stock) and got new stock replacement wires cap and rotor... 5-10 min and fixed the problem... try it, hell its cheap and wont hurt to do...
yea im going to do it today and see if it still does it..
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Old 02-06-2007, 06:29 PM
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dimebag
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Default RE: Misfire!!!!!

i think itll work... let us know... if u can, wont hurt to do plugs w. the cap rotor and wires.... do all that and atleast u can eliminate the spark as ur prob
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