probs when vtec on

[syaq0707]

need advice, i use cam skunk2 tuner series stage 3,piston & conrod ek9,valve skunk2 +0.5mm hi comp.,use afc neo,small vtec wiring (integra d6 halfcut), ecu with mugen chip copy.......already setting, vtec on at 5.2k, b4 vtec on, ok..but when 5.2k mcm letup2 & semput2,then only vtec on as usual...y aa?

 

[allance]

i think u need retuned ur air-fuel n ignition timming(u need change to e-manage or other piggy back ecu to tune ur igntion) bcos chip copy cant match ur upgrade!