Cylinder 4 missfire

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Apr 11, 2013 | 10:10 AM

#46

YFZ450Lynx

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iTrader: (1)

Joined: Oct 2010

Posts: 784

From: San Jose, CA

Car Info: 2011 STi Sedan Plasma Blue

Quote:

Originally Posted by Javirex23

Motor still runs awesome, I decided to drive the car for now until I chose a build plan and builder... The check engine light hasn't even came on yet since the battery was off when Adam was inspecting the motor. I'm most likely doing a basic build with some good internals

If you do have a ringland issue, even that the car power seems to be there fine, make sure you change your oil lot more often, the carbon is getting passed the piston in to your oil. It will leave build up everywhere that your oil passes including your turbo.

Apr 11, 2013 | 10:16 PM

#47

oshrizak

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iTrader: (5)

Joined: Apr 2013

Posts: 1,911

From: Orinda/Palo Alto/Los Altos

Car Info: Subaru STi Sedan '13

Quote:

Originally Posted by YFZ450Lynx

ABSOLUTELY DO THIS. Happened on my old car I would have to change the oil at least once every week and a half... In the end its not even worth doing it for the cost of the damn oil :-/ Be careful out there, hopefully you wont get stuck

Apr 12, 2013 | 10:38 AM

#48

ransack

Registered User

iTrader: (7)

Joined: May 2010

Posts: 238

From: East Bay Area

Car Info: '07 WRX Wagon

I recently went to Subaru for this same issue.

Subaru said this is happens to our motors here and there. Basically, I had a loose guide. They had to pull the whole motor, rebuild the head, and put everything back to spec. It burnt a few valves along the way, hence the rebuild.

It could be a number of things, but apparently this problem I had isn't random.