Originally Posted by msnx2k Hmmm that valve is missing under the manifold, it is just looped from one bung to the other.
theres your problem
I do not have one now and did not run one on my DE and never had an idle issue. I would go over all of your vac lines to make sure they are routed correctly. Sounds like you have some un-metered air getting in the system.
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92 Infiniti G21 - 242 WHP & 182 Ft-LBs (Mustang Dyno) - NA 88mm 12.5:1 VE, N1 cams, Xcessive Intake, Q45 TB, Mazworx Header, 3" Exhaust, Nismotronic ECU on MAP and IAT. View The Build Here