hi, im using 4g92p sohc ecu..it is possible to tune my stock ecu and check the AFR/ignition problem??
coz i hv a problem wif my car when speeding at 100+km/h, got soung like bell,"krenngg krengg" and i felt the power...
I bought a second hand VAFC & comes with an installation manual. Tried to install it but unfortunately, the mec/tuners need the ECU diagram to link the VAFC with the ECU in order to control the MIVEC openings...