d15b7 w/ z6 intake many in ex 4 door problems
12-18-2011, 05:47 AM
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d15b7 w/ z6 intake many in ex 4 door problems
well finally got my gas mileage build going. It is a d15b7 with a z6 intake and a ebay header. Also i deleted the coolant lines to the iac and the throttle body running a po6 ecu. The car has good power cant find any vacuum leaks but the idle is surging from 700-1200 rpms back and forth already tried another iac still does the same thing. The brake booster has a vacuum leak even when i disconnected that vacuum line the surging still continued. no check engine lights as of yet.
Last edited by ef4real; 12-18-2011 at 06:06 AM. Reason: title wasnt clear
12-18-2011, 07:54 AM
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Re: d15b7 w/ z6 intake many in ex 4 door problems
do i need to do a block off plate for the fitv since we deleted the coolant line to it? It looks like the fitv works off the coolant heat.
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