boost cut

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Dec 14, 2009 | 09:50 AM

#11 (permalink)

blacksti

DudeMan

Joined: Sep 2006

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You should ALWAYS do a boost leak test before tuning, but more then likely he didn't change the value for fuel cut like stated. Same thing happened to me when I got my first tune.

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Dec 14, 2009 | 10:00 AM

#12 (permalink)

concordcobra

Breakin tranny's

Joined: Jul 2007

Posts: 2,598

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Sounds like you should go to someone who knows how to tune an STI....

Dec 14, 2009 | 10:33 AM

#13 (permalink)

schoellnasty

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Joined: Jun 2003

Posts: 1,572

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Quote:

Originally Posted by zenith

OK well what would you guys do in this case cus it could be vaccum lines, a mechanical problem, or the tuning. Should I take it to a shop.

Well there is a way to find out if its a tuning/BCS issue or a mechanical issue with the wastegate. If you run a line directly from the turbo outlet to the EWG and do a WOT pull, the car should hit 1 bar exactly and hold rock solid. If that happens you have a problem with how your BCS is hooked up or a problem with your tune. If it makes more than 1 bar then you have a problem with the wastegate.