Hondata

im mapping a b16 with itbs soon and with his setup idle is adjusted via the itbs, id then imagine you'd leave the iacv unplugged and select disable iac error in the parameters?

but yea run one vac line off each to a vac mani and fit the map sensor to that.

any more info on this guys?

check the cells on this rpm maybe its running v rich on the cali?

also check the ecu isnt switching onto the vtec table at this point but the engine not actually activating vtec.