08-22-2014, 02:21 PM
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#11 (permalink)
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A True Z Fanatic
Join Date: Dec 2010
Location: Houston
Posts: 14,532
Drives: '10 G37 6MT
Rep Power: 2465057
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Quote:
Originally Posted by Mitco39
You could be right, as the car switches from open loop to close loop it could cause a hiccup until it stabilizes itself. Easy way to try and see if this is causing it is to pull both lines and plug the ports in the intake manifold and idle the car and see what happens. You could just vicegrip the lines to and let the secondary system do all the venting. I am going to try that this weekend and see what the car does.
Is that secondary drawn in pre-turbo? It could be that there is enough vac pre turbo to keep the air being drawn through that system to minimum. But your right the same principle applies in this case as well. Its a head scratcher for sure. Ill try and get some time tonight with the car.
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As I understand it, yes pre-turbo. My buddy has a GTM TT and he tells me its routed in the intake filter tube before the turbo. I'm almost positive he's correct too because you can clearly see the upper pipe (IC) and that's not where it's tied in.
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