Need help with my SR20 det red top Silvia

[Afghan Trooper]

The car won't rev past 4500 rpm. Checked all the hoses and there are no air leaks, so I have no clue what the problem is.

[wangan_cruiser]

could be your maf

[Team DET]

could be your maf
i second that

[Ceepo]

clean your maf, and or try it out on a freinds car and see if his/hers does the same thing...

[Joey89s13]

timing timing timing

[Afghan Trooper]

I already cleaned the maf and it made it a little better but it still does not go past 45xx revs.

[wangan_cruiser]

try to switch with a different maf.

[LayNLow]

I am going to take a wild guess here but check your 4th and 5th gear sensors. Make sure they arent shorting out on each other. I say this because 4th and 5th have gear based rev limiters and one is at 4500. Forgot which one, but either way check them.

[army240]

Make sure you have enough fuel pressure ;)

[VNG704]

could be your maf
also try checking the MAFS wiring if you recently did the wiring. Then check to make sure the connector is connected securely.