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Boost Causing Serious Backfiring


Periklis

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  • Member For: 11y 6m 26d

My god my f*ckin sh*tty bf does the same thing!! Been trying to get to the bottom of it I originaly thought it was the fuel im running, not the case now I was told could be a blockage in the induction still not the case!

Mine idles like sh*t then all of a sudden kicks back into normal its aost like its gasping for fuel or something?

Does your engine light come on too after floggin it abit? Then dissapier after a couple days ?

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  • Member For: 13y 6m 15d
  • Gender: Male
  • Location: Victoria

Usually coils are most noticeable under WOT but won't cause rough idle.

Sounds more like valve float. Maybe the turbo actuator's diaphragm has a split in it and is causing over boost under WOT.

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  • Member For: 14y 3m

This just does not make sense because it was happening before I threw a rod on my previous engine, this is now a new motor with a replaced turbo, and a replaced cat...... any ideas?? this topic seems to be so popular but not defintive answer... its killing me

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  • Member For: 16y 7m 5d
  • Gender: Male

Check your fuel pressue. Mine had similar symptoms to yours but funnily enough only on hot days and with less than half a tank of fuel (pump was speed was eratic). Replaced pump - all good.

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