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View Full Version : engine issues, started with misfires, the saga continues...



engineerjet
06-18-2016, 07:06 AM
So a quick update. Originally I have been going through coils like it was my job. I finally schedule some time to get a diag on it and it turns out the PCV valve was leaking and they said it is a good chance that a majority of my issues can be due to the pcv. So i order a new one and install it.

As i'm driving with the new PCV I noticed right off the bat that every time i take my foot off the gas i can hear the turbo winding down (very noticeable). Sure enough CEL pop up and i use my generic code puller (sorry dont have the exact codes right now) and there are a codes up the wazoo. Codes for fuel pressure (P0089) as well as a bunch of other lean bank codes (again, dont have the exact code)

This is where things get confusing. I notice the new PCV does not have a check valve, and the old PCV valve did. I do a quick google and it turns out that depending on when the 2007 was produced it could either have a check valve in the pcv or a check valve in the metal breather tube. So naturally i check the date my car was made and it is NOT supposed to have a check valve in the PCV.

Which means the old PCV i had was the wrong part all along and the new one is the correct one. But now that I have the correct one all these codes are flying, the power seems to be lacking (takes forever to accelerate in higher gears, and that turbo spooling down every time i let off the gas. Has anyone had issues close to this?

Current setup: APR K04, HPFP, injectors.

When I switch to stock mode, no issues

mcpcartier
06-18-2016, 11:26 AM
post the codes....that give everyone something to go off of.

engineerjet
06-18-2016, 12:00 PM
P0237
P0106
P0642
P0089

Just got a chance to pull the codes again, I was away from the car before