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my wrx is missfireing help please

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Old 19 February 2010, 06:10 PM
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mikeyb86
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Default my wrx is missfireing help please
hi guys my 93 wrx is missfiring i am unsure y this is so i have changed the coil packs still same problem she sound like she is running on 3 cylinders please can anyone help me many thanks mikey
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Old 19 February 2010, 06:30 PM
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greatgonzo
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Did you check the plugs
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Old 19 February 2010, 06:31 PM
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chocolate_o_brian
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Spark plugs and HT leads are your next bet. Check for dampness on them.
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Old 19 February 2010, 06:33 PM
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mikeyb86
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Originally Posted by greatgonzo
Did you check the plugs
not yet but will get on to it tomorow but when i bought the car it did have a brand new unopen pack of iridium power sparkplugs in it so it could be them
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Old 19 February 2010, 06:37 PM
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If you have a new set then get them in mate and see what happens, at lest it wont cost you anything
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Old 20 February 2010, 03:07 PM
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mikeyb86
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right guys iv cahnged the plugs and im still avin the same problem please guys help
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Old 20 February 2010, 03:16 PM
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compression test?

HG failure can cause poor running, MAF can give smae problems too.
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Old 20 February 2010, 03:24 PM
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scoobydo20
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try unpluging 1 lead at a time to see which 1 is not fireing correctly and take it from there could be a number of things, u could try swapin leads, plugs.
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Old 20 February 2010, 03:42 PM
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Was the condition of each plug the same ?
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Old 20 February 2010, 03:48 PM
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mikeyb86
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Originally Posted by scoobydo20
try unpluging 1 lead at a time to see which 1 is not fireing correctly and take it from there could be a number of things, u could try swapin leads, plugs.
how wud i no which 1 is not fireing right tho
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Old 22 February 2010, 09:06 PM
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Originally Posted by mikeyb86
how wud i no which 1 is not fireing right tho
because when u unplug the line that has the fault on it not much will happen, when u unplug 1 that is working ok it will get alot worst.
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