i did the h22 swap to my accord, bought a ecu from phearable. but they suggested to disconnect the vacuum hose to the sec..intake butterflies since the ecu does not look for them so just want to know if this cause the butterflies to rattle at certain rpms...the rattling does come around the intake mani..

 

How do like your Phearable ECU? You can hook up the vac hose to manifold vacuum if you want. Or take the IAB plate out altogether. But it will not cause a rattle.

 

i love the setting on the ecu, vtec kicks in smooth at 4600.. have the have the two step at 4000 and redlines 8200...engine lite lits at 7500 which is my shift light