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R33 Sounds Rough Like A Wrx With No Power

BLK-51N

By BLK-51N,
in General Maintenance

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BLK-51N Proficient

BLK-51N

Posted
Posted

Hey guys i just picked my car up from the machanics were it had just got new splitfire coils nd plugs put in nd on the drive home i was testing it out nd all of a suddend it started sounding real rough nd has no power now. almost sounds like a wrx but with no power

Can any1 give me any ideas 2 wat might of happend?

simpletool Mentor

simpletool

Posted
Posted (edited)

Time to learn how to change coil packs yourself. You'll need 2 hands, a socket set and a set of hex keys. Go get 'em cowboy/cowgirl.

No seriously....the mechanic didn't put them on properly. Either a plug has fallen off a coilpack, the coilpack isn't seated onto the plug properly or the screws are missing from the coilpack brackets. Many mechanics are so hopeless it could be all 3.

You will work it out by taking it apart and putting it back together. The coilpacks are under the cover in between the cam covers, under the cross-over intake pipe. Yes, you have to remove the cross-over pipe, then it is plain sailing. You do not have to remove the spark plugs. Make it a game and time yourself. If you do it in less than 60mins your GF owes you a blowey.

Edited by simpletool
Birds Grand Master

Birds

Posted
Posted

Take car back to mechanics?

If you want to do it yourself, remove the valley cover...then put the pipes back together so you can start it up again. While idling, remove and replace each coilpack loom plug...one at a time...until you get to a coilpack that makes no difference to how the car sounds. This is your non-firing cylinder. Try swapping that coilpack with another healthy coilpack, and see if the non-firing cylinder has changed places or stayed in the same spot. If the problem follows that coilpack to the other cylinder, then faulty coilpack...if the problems stays at the same cylinder then it could be a faulty spark plug or coilpack loom plug.

SargeRX8 Grand Master

SargeRX8

Posted
Posted

My car done this with brand new coils. One of the coils died. Then they all died. New set works brilliantly. One of your cylinders isn't sparking. Unplug each coil one by one with the engine running to see which one does not make it run worse. When you unplug one and you don't notice a change, you know that cylinder setup is f**ked.

cannabiscorpse Mentor

cannabiscorpse

Posted
Posted (edited)

Probably not what mine was, but after i replaced my ecu i found the connection wasnt the best and was causing this exact same thing. I also had the same thing happen when i replaced my coil packs, and in a hurry forgot to clip number 6 back in!

Edited by cannabiscorpse
cannabiscorpse Mentor

cannabiscorpse

Posted
Posted

Oh yeah, and definately do ur plugs and coil packs ur self from now on- you wouldnt believe how easy it is. Im not the most mechanically minded person and it takes me less than half an hour to pull out gap and replace all my plugs.. not worth paying someone else for it, especially since they got it wrong

  • 2 weeks later...
xtermin8or Collaborator

xtermin8or

Posted
Posted

Check if the ground for the ignitor pack is properly on . And if it starts doing it while it gets hotter its most likely the ignitor module. Try using a spray like contact cleaner and spray it on the ignitor while the car is running as the contact cleaner will cool the igniter down very quickly and your revs might stabilise. Thats what happened to my car , had to get a ignitor from the wreckers , and problem solved. Wish i knew that before i changed to another set of Splitfires and new plugs..

This problem occurs mostly with CA's because theyre so old now , so I guess since RB's are getting older this is going to start happening to them aswell.

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