cel
my check engine light is on for a fuel trim code, and i dont know what is making it go off. the only things i have done was put in a new turbo, 16g, boost controller and boost gauge. i am getting around 25+ vacuum at idle :/ what should i do to troubleshoot this. also whenever i romp on it, unless my rpm are around 4k, the boost actually bogs it down instead of giving me horsepower.
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get it scanned. How are you tuning this?
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p0505 is the code i get, i havent used anything to tune it because i havent done anything to really need it tuned yet, or have i ? because the mbc, gauge, turbo, intake filter are the only things i have done to the car so far.
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I believe po505 is for the iac.
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what exactly is an iac ??? sry not good on my acronyms. and also my second question, why am i getting around 25 vacuum at idle and above 30 at decel. isnt 18 the average amount???
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Idle air control valve, its on the throttle body. At ide vacuum should be 18-20 and decel is normally at 30. Sounds like you have a possible vacuum leak.
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i agree, sounds like a vacuum leak. Start with the lines that you hooked up for the MBC and boost gauge. Something may have not been re-installed correctly
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well... my boost gauge is t'd into the host that runs from the right side of the intake manifold to what i believe is the fuel pressure solenoid :P im not 100% thats wat its called but thats wat i tapped into. and my mbc is tapped between the bov and the intake mani. and the other is ran to the actuator.
there is something i was wondering about tho. the boost control solenoid, what should i do with it??? should i leave the one that origionally went to the actuator off and leave the other hose hooked to the intake??? or should i scrap both hoses??? or should i tee into the hose between the actuator and the mbc and connect that to the nipple on the solenoid that origonally had the hose to the actuator? |
just get rid of the solenoid. And also i would have just run the MBC from the turbo compressor housing to the actuator. Youll get a better pressure reading from there.
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i dont know where that is, ive got a e316g
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