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SkiVT SkiVT is offline
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Join Date: Aug 2013
Location: Vermont
Posts: 182
Garage
My line from the decel valve to TB is as in your video. You could just attach your vacuum pump to the TTV ports while in the car. Other threads have vacuum holding until the temp hits high 80's so it may be cool enough in your garage. My belief is your TTV holds vacuum as you said when the hoses are correctly connected, the startup idle got worse. If it wasnt holding vacuum, idle would be the same as the 2.7 ccp pressure you observed because vacuum is happening immedietly. My guess again is the afr has been tuned for startup at 2.7 CCP. When you correct the hoses and vacuum is held off, your CCP is 2.1 which will then drop/richen your afr, which ends up being too rich to make happy idle.
Old 09-07-2018, 02:34 AM
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