Rb25Det Compression

[GTSBoy]

How can you tell there is no pressure on the fuel reg? Tell us exactly what you "checked".

[mungy]

there has to be pressure all the way up to the reg and inside the fuel rail. the reg does exactly what its name is....regulates the pressure, but the pump has to be running to create the pressure, backyarder style is to pull of the feed line and crank the motor if fuel pressure is there it will spit alot of fuel out, now if there is pressure and no fuel in the cyliners then you have a faulty cas or faulty injectors

[Ben C34]

Definitely not normal. The only thing that controls the pressure is the regulator, so pump on means pressure at injectors, its notlike the ecu can somehow drop the pressure when the pump is on.

Had this car actually run previously? sounds like you have some issues

[Rbvl]

Well I sorted the fuel out had a blockage in the old fuel filter god knows how old it was and it doesn't sound like a wrx anymore with the new MAF so I'm pretty happy. Next thing is the car makes power and pulls up until around 4k then it's just like dead revs and has no power. It idles fine and revs fine in neutral any ideas?

[mungy]

any smoke? my R33 did that a while ago had a small amount of black/grey smoke turned out to be low comp motor.

[Rbvl]

There is a little bit of black smoke when the engine is under load. It was going a lot better than it is now only a month ago