I changed my spark plugs today and had to diconect the battery. When the new ones where in it was missing under load at 3000rpm so I put the old ones back in thinking maybe a dead plug....but it still missfires ... im thinking coilpack but why would I just go down like that any Ideas anyone????

 

coilpacks can crack relatively easily depending on how old there are you could have done it whilst removing one.

 

probably right do you know where I can can one or a set dont think they have ever been changed im well gutted

 

You can tape them up if you need to.
Worth checking them first
I believe David at Welcome to the API website does a good deal but that may have changed with the current economic climate.

 

does it only do it under load as mine is doing the same but clears itself if you keep it floored for long enough then runs fine. Just wondering if mine has the same fault.

 

idles fine but as soon as you grt to 3000rpm it imposible to drive through im hoping it is a coil problem.. diconecting the battery wouldnt cause any problems with the apexi fc would it???

 

how would I check them is it a visual for cracks and splits

 

holy sh*t,it must be the weather.put a brand new set of ngk pfr7b in mine and it was sh*te.put the old plugs back in and it was great.old ones are hks.

 

Damaged Coilpack

stistussy depends what car/mods you have as i use 6s and my standard car has been fine

 

Ive the same prob in 1st & second if i give it a bootfull

 

Ive just had these plugs fitted,maybe it them then

 

sorry mate,mine ain't standard anymore.

 

fair enough

 

ok thanks all ......................Item number: 220312273848 on ebay might give them a try will take all the coils off in the morning and inspect ...

 

just had a look at these,they say upgrade over subaru ones.has anybody seen these before?are they any better if so how?

 

what year car u got m8? ive got a set of coilpacks for a 95 ish? car go in the top of head