Hi,
A mate of mine is having troubles with his R33.
As soon as it hits about 5500rpm it just stops accelerating and starts back firing. or if it doesnt back fire it just stops reving and stays @ 5500rpm...
We are certain that is not coil packs as we have had many coil pack issues before and this isnt the same.
The car had a Power FC, Z32 ADM and a 044.
The now has a Stock ECU, AFM and fuel pump.
Also today is the first time the car has been driven since August..
Any help appreciated!!