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Old 12-02-2019, 01:34 PM   #3
Scooby Newbie
Member#: 442552
Join Date: Mar 2016

Originally Posted by viper_crazy View Post
I don't know if the 2.5i are prone to this, as they have a differently designed intake, but on some WRX's of this era, there's an intake-to-tgv ring seal that weren't made thick enough and contract too much in the cold and basically cause an air leak. Subaru updated the part and p/n with thicker seals that solves this problem. Might be worth looking into if this applies.
I don't think my 2.5i has TGVs at all. Its like it isn't firing those two cylinders. Doesn't look to fun to get at the spark plugs with the engine in the car either

Additionally, I do remember getting a cam position sensor code and cam phaser (not sure if that is the correct name in Subaru lingo but I'll go with what I know) once. However, they have never come back and the misfire ones do. Although according to my car doesn't have variable valve timing but I could have sworn I saw it when I had it apart.
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Last edited by smccloud; 12-02-2019 at 01:40 PM.
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