If yes, one of the reason might be insufficient engine oil pressure. The ECU will not enable the MIVEC solenoid that activates the high cams profile of the MIVEC if not enuff engine oil.
my ride is experiencing low fuel pressure into engine during high boost or high speed...
i had changed my fuel pump to 280lph with regulator as well...while starts the car for awhile...
HKS SLD TYPE II
Used
RM550
Suitable for Altezza Automatic Transmission
Go beyond 180kmph
Reason to sell: Changing To Manual
email me: nikosan[at]doridoriautoparts.com