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April 18, 2019, 07:29:16 AM
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Author Topic: help a friend 2010 wrx.  (Read 1232 times)

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Offline Jeremy613

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help a friend 2010 wrx.
« on: December 31, 2014, 12:42:41 PM »
So my friend jason has a 2010 wrx and he has had nothing but issues since he got it in November. It won't get out of its own way and back fires. All stock except a cold air intake. He is pushing 10lbs of boost and vacuum of 20 and it goes down to 24 at times. His gas mileage is only around 17mpg. The dealer just replaced the turbo inlet hose for him but its even worse now..

Anybody have any idea about this cause the dealer keeps jerking him around even with the extra warranty he bought. It would be greatly appreciated.

Offline deadlydave

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Re: help a friend 2010 wrx.
« Reply #1 on: December 31, 2014, 01:29:06 PM »
It could be running an aftermarket tune on stock parts, or no tune with some modified parts.  Could be a problem with the vaccum lines in/around the intake too.  It probably needs a tune-up at minimum:  new spark plugs, fluids, etc.

How many miles on it?  Does it consume oil?

Offline Turbaru

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Re: help a friend 2010 wrx.
« Reply #2 on: December 31, 2014, 01:32:47 PM »
20-24 lbs of vacuum is fine. 10 lbs of boost is not fine. If he has the stock intake i would say put that back on, disconnect the negative battery lead for 20 minutes or so to reset the ecu and see what happens.
Im not quite understanding why a replacement inlet hose would make it worse!
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Offline Kavik

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Re: help a friend 2010 wrx.
« Reply #3 on: December 31, 2014, 05:12:36 PM »
I second putting back the stock intake, at least for trouble shooting.  Also second the suggestion of checking for leaks since it got worse after they fiddled with it.   
To be honest, I'm surprised the dealer even agreed to replace the turbo inlet while there's an aftermarket intake on it

I wonder if there were other parts and a custom tune in it before it was traded in? Since it was bought from a dealer, maybe they'd agree to try reflashing the ecu with a stock map before wasting money replacing any more parts under warranty....worth a shot to ask, to rule out the tuning questions
-Daryl (Albany)                                                                                   ಠ_ಠ
['14 Mazda3 SGT]     ['03 Sonic Yellow WRX Wagon]     ['05 WRB WRX Wagon]     ['02 PSM WRX Sedan]
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