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ok i got a 2007 new body style silverado, and when the valve covervent that goes to the intake is vented to the atmosphere the fuel trims go +17,18 OR 19 L like it has a vacum leak, but i plugge it and they 0 out and the intake side is plugged to so not leaking from there
I seriously suggest you unplug that. It's the crank pressure vent. I vented mine to atmosphere on my 08 and tuned accordingly.
yeah i unplugged it i just plugged it to check the fuel trims i actaually ran it to a vacum source to 0 nout fuel trimsQuote:
Originally Posted by spygst
Just know that there are oil vapors coming out of that line.
ok so the question was why r my fuel trims going crazy by that being dissconected
Because there are gasses that are accounted for in the tune. When you remove the gasses it runs lean, and the computer dumps more fuel.
You're covering the hole in the intake right?
LOL, I just figured that common sense tells you to cover the hole in the intake... :no2:Quote:
Originally Posted by Frenchy
yeah the hole on the intake side is gone cuz i ran new piping for the turbo set up! and well not even gonna tune with out that hose unplugged im gonna use an oil catch can an run it to the intake side of the turboQuote:
Originally Posted by Duct_tape123
got it done! passenger side pcv does to a catch can and back to the intake on the turbo , and the driver side i installed a pcv valve so when under load nothing goes thru but with vacumm it does go by