My car feels like its hitting a slow cut rev-limiter, but only when under heavy load or above about 7psi (but this isnt always the case) somtimes it will do it on low load low revs.
So far i have changed;
The entire engine wiring loom, (as it had been wired up by a retard)
Spark plugs
spark plug leads
coil pack
Iginition amplifier
Injectors
fuel pressure regulator and rail
ECU
ecu temp sensor
throttle body and all sensors on it
ICV (This seems to make the problem worse when un pluged)
Fuel pump (wired to ignition live so it cant be cut by ecu)
Changed and imprved the earths.
the only things i havent change are;
fuel filter
crank sensor
as i dont have these to hand.
Any ideas? the car did work fine before this