Quote:
Originally Posted by irax
So.... the CEL went away before I could order the new cam sprocket and timing chain. It's now on full power again. And all I did was let it sit and then idle it. Maybe the solenoids I replaced was the fix and that I didnt let it idle long enough to clear out the oil. I'm going to baby it and keep an eye on it. I really appreciate the help!
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I too have replaced all four of those oil control solenoids with the updated parts on my FR-S due to the seals leaking, (you did make sure Subaru sold you the updated parts mentioned in the technical service bulletin, right?)
See this link here:
https://www.ft86club.com/forums/show...01#post3367301
And If I were in your situation, I would now run it for a few hundred miles and then pull those solenoids back off to check those valve mechanisms for "springy-ness" again and to make sure the crusty build up is gone, then I would change the oil one more time using Pennzoil Platinum 5W-30 ILSAC GF-6A made from natural gas. And since you're boosted, change the oil and filter at least every 2,500 miles from here on. There's nothing worse for modern engines than failure to properly change the oil, which is what causes that crusty buildup that you're experiencing, and when you add boost to an engine that wasn't originally designed for boost, always double the frequency of oil changes.
I hope that solves your issues permanently. Keep us posted.