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Power Loss And Blowing Smoke

z3n2k

By z3n2k,
in General Maintenance

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z3n2k Rising Star

z3n2k

Posted
Posted

Over the past 2 weeks it seems that my car has been loosing power, my car has been dynoed at 260rkws at 1.4 bar of boost. Car has been running fine for around 3 months now. Car is running a GCG Hi Flow and the usual other mods, FMIC, injectors, z32 AFM, etc.

Since Friday my car has been mis firing at high revs for some reason + the lost of power. I did run my car very low on fuel on thursday nite. So i put some injector cleaning in the car on saturday night with a new batch of fuel and it seemed to fix the problem for the night.

When i come on boost my car will blow some smoke and it seems that it could be oil or water. Running car off boost it is fine, no miss firing. Also my knock level is not going high. When it is mis firing it only reachs 25. No metal pieces in oil as well.

Things i have done:

Changed plugs - no difference to mis firing (BCPR6ES gapped at .7mm)

Injector cleaner - difference for one night only

Coil packs - have no cracks in them but have order splitfires which come in 2 weeks.

Checked oil no metal pieces and is pretty clean still like a month old

Still need to complete a compression test as well

What else could be causing the loss of power and blowing smoke?

Would this be something to do with the turbo blowing smoke?

Hopefully the splitfires will cure the mis firing situation but unsure about the blowing of smoke when coming onto boost

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https://www.sau.com.au/forums/topic/114622-power-loss-and-blowing-smoke/
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SECURITY Grand Master

SECURITY

Posted
Posted

if the smoke it black then one or more of your cylinders arent firing so it could be anything related to your ignition (plugs, coil packs, injectors).. from what you've said it could be your coil packs.. in the meantime take your coil packs off and lightly sand the inside of them.. this part:

DSC00454-2.jpg

make sure it looks something like this when you're done:

DSC00577.jpg

its worth a try and it wont take much of your time.

i did this to my car when i had a misfire problem and it fixed it right up.

z3n2k Rising Star

z3n2k

Posted
  • Author
Posted (edited)

The colour of the smoke is more a white blue colour, which points towards oil, but it does leave a large amount of carbon on the back of my car. Could this be anything to do with the Turbo.

It only blows smoke when under boost so therefore it might not be the piston rings or anything since it not doing it all the time.

Will clean the coil packs up as above and see if that makes a difference.

Edited by z3n2k
edspaged2 Rising Star

edspaged2

Posted
Posted
blue smoke is never a good sign.. ever.

go get a compression/leak down test done to be sure. hoping its not something major wont stop it from being something major.

afraid so too. Do what SECUR1TY has mentioned and hope for the best.

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