alex_impreza

hi guys
just wanting a bit of help under acceleration my car is misfireing a bit,

so i ran the engine and disconnected the maf and it revved really weird then i plugged it back in and run well again so dont think its maf sensor

so i checked the coilpacks and it looks like 1 has been siloconed over and a couple of others are slightly split at the end under the rubber

another of my mates said change the spark plugs this might be it ?

what do you think

thanks
alex

my94wrx

iTrader: (4)

what do you think? well i think if you have had a look at your coil packs and one has been silicone over i would say its that, take them out, take the rubber boots and have a look for cracks even the smallest will cause a misfire on boost.

alex_impreza

yeh well i took three out and one was silicooned over and the other two had slight cracks in is it worth replacing them ???

thanks
alex

my94wrx

iTrader: (4)

if they are cracked thats where your problem is, is it worth replacing them? yes, preferably with a new set or good used set without any cracks even hair line ones.

alex_impreza

what about spark plugs mate could it be that ?

thanks
alex

njberrie

iTrader: (1)

it will definaterly be affecting your performance if they have any cracks mate but if your replacing em you might as well stick some new plugs in while your at it for the sake of 30quid.

my94wrx

iTrader: (4)

you answered your own question earlier by saying that you have already identified cracked coil packs! while you have the coil packs out change the plugs as a matter of course.