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Old 01-30-2009, 03:26 PM   #1
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HUGE smoke coming out of my exhuast.

i have 2007 STI with catless turbo back and cobb stage 2. i was toying around with it the other day, slam the gas and the turbo didnt boost as well, when i got of the freeway my car was smoking bad enough to cover the whole road, but only when i gave it gas and it is down on power big time. no engine codes came up. a few people i talk to said it was the turbo and the car does have a history of shooting boost solenoid codes....but i could never figure it out. just want some advice before i drop money on a new turbo.
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Old 01-30-2009, 05:24 PM   #2
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my friends car did that, combination of bad turbo and piston ring
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Old 01-30-2009, 05:39 PM   #3
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^ yup if its white smoke when u gun it and idle its your turbo..... it happen to me.

if its black smoke coming out like u when old hondas and diesal throw out when they gun it, then it is your motor
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Old 01-30-2009, 05:46 PM   #4
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That sucks man. Hopefully it is just the turbo.
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Old 01-31-2009, 11:26 AM   #5
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I'd say no boost + smoke = Turbo
Time for an upgrade. Good luck!
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Old 01-31-2009, 05:39 PM   #6
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there's a service bulletin out on cobb's website and issues that might occru while running a "catless tbe" on an 07 sti.

"Added 04/16/200 7 - A Service Bulleti n has been adde d to educate AccessPORT users
about the potential overboost issues that may occur when operating the vehicle with a
catless exhaust system".


Good luck! keep us posted

Last edited by nslow_fast_out; 01-31-2009 at 05:42 PM.
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Old 01-31-2009, 07:56 PM   #7
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Quote:
Originally Posted by GHOST STI View Post
i have 2007 STI with catless turbo back and cobb stage 2. i was toying around with it the other day, slam the gas and the turbo didnt boost as well, when i got of the freeway my car was smoking bad enough to cover the whole road, but only when i gave it gas and it is down on power big time. no engine codes came up. a few people i talk to said it was the turbo and the car does have a history of shooting boost solenoid codes....but i could never figure it out. just want some advice before i drop money on a new turbo.

White smoke could be a bad head gasket, does the smoke have a sweet smell to it? Also a good chance that u rings are tost. The 2007 Sti a very bad engine. I hope everything works out ok for you.
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Old 01-31-2009, 08:03 PM   #8
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Get a compression test. I had this happen to me before. Blown turbo and a dead #2cylinder
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Old 02-05-2009, 11:08 AM   #9
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i took the turbo out and the intake side was filled with oil in it.....but i cant tell anything with out opening it up.
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Old 02-05-2009, 11:29 AM   #10
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piston rings!!!!
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Old 02-05-2009, 11:50 AM   #11
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what color is the smoke? even if you havent completely toasted the rings you can get blow-by under heavy load
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Old 02-05-2009, 12:31 PM   #12
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the smoke is white sometime alittle blue.....horrible burn smell and turbo wont boost at all
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Old 02-05-2009, 12:31 PM   #13
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oh and my motor is has 6k on it cuz its new
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Old 02-09-2009, 11:51 AM   #14
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Quote:
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the smoke is white sometime alittle blue.....horrible burn smell and turbo wont boost at all
Yup I'd say your turbo be toasted.
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Old 02-10-2009, 12:45 PM   #15
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thanx guys for the input, im gonna buy another turbo with my tax return and see where that gets me..
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Old 02-10-2009, 12:45 PM
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2007, 2008, black, blue, catless, coming, ej20, exhaust, indle, shooting, smoke, sti, turbo, white, wrx


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