Hey guys, im new to skyline Australia and i would like some help.
My skyline r33 is losing power when i flat foot and the rpm reaches 5000rpm or so. Recently the problem has seem to evolve and make the car die out past 5000 rpm and what i mean is, the car is still on but there is no power what so ever past 5000. I've had this problem before except the dying out part and i fixed it with AFM. I have bought 2 AFM's and put them in the car and reset the ecu, however the problem is still there but the car dying out problem seem to be gone. Does anyone have any advice on what i can check next please. Im a student so i dont wanna go out and spend more money for nothing.
My car only has a few mods: (STOCK ECU + BOOST-no boost controller)
1.Spitfire coils packs
2.FMIC
3.After market fuel pump KEMSO 340LPH
4.Exhaust system turbo back
5. Iridium sparkplugs that i replaced about 6-8months ago. (Have not touched the gaping)
Tomorrow i will check the coils and spark plugs, but is there anything else i can check? Ive also checked previously for air leaks but found nothing.
Can timing belt be an issue? and o2 Sensor?
Thanks!
Rany