New Exhaust Question...Turbo Noise

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04-25-2010, 01:36 PM

uncwgrad1

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New Exhaust Question...Turbo Noise

I just installed a 4" MBRP turbo back exhaust system and love it!!! Why does the turbo noise, at idle, seem to cycle on and off? Shouldn/t there be no turbo noise at idle?

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04-25-2010, 01:40 PM

SteveBricks

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PCM programming cycles the vanes to help prevent their sticking.

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04-25-2010, 01:41 PM

utjer

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The turbo cycling is normal. It is in the pcm programming. It is there to keep the turbo vanes from sticking.

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04-25-2010, 03:10 PM

uncwgrad1

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Great! Thanks! I can't beleive how loud the whistle is while driving.

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