Hondata

Ok i have a guy whos car has switched over to the obx itbs. He has a golden eagle vacuum manifold split to all 4 cylinders and 1 line going to the map sensor. I thought bad map sensor so we swaped it out still idleing in column 8-10!!!!

havent changed to alpha n yet but should still run on map sensor. plan is to run map sensor base for idle and small part throttle then set up secondary table to switch into alpha n during hard pulls etc. S300 is being used.

Has anyone had this problem before or anything similar. this was also looked at on crome, ectune, and he bought an S300 so software and hardware is ruled out. Wiring is correct and matched have not ohm'd anything yet.

I believe we have fixed part of it. he ran a new line from after the butterflies to the vacuum manifold and also to his brake booster. Brakes feel better and you can see in the next log will sit as far back as column 3. now we havent tried alpha n yet but with how the vacuum set up was before it would not stay running on alpha n. we havent tried yet since switching the vacuum source yet i would think vacuum wouldnt matter with alpha n either way.

Try using Alpha-N

i will switch it back to alpha n but it would not run last time as soon as it would start it would die. i pulled timing hope it will atleast run and not idle surge this time since no iacv.

Where are your vacuum lines connected?...On the actual manifold?