Shimming metering head - 2l 16v

[coullstar 0]

Can you shim the metering head on the 2l to raise the fuel pressure as you can on the 1.8l?

 

If you can then where on the metering head is the bolt that you take out as its not the same as my old 1.8?

[coullstar 0]

Anybody?

[corradophil 3]

Apparently you can adjust the fuel pressure via an adjustment screw, which you would not know about without being shown it!

I have tried this and got no performance change, so I put it back where it was.

[flusted 0]

if you raise the system pressure,you will raise the control pressure aswell,losing power.The wur mod everone has done on 1.8 involves lowering the control pressure to increase the mixture across the rev range

[h100vw 0]

Upping the system pressure will, like flusted says, jack up the equivalent of contro pressure as well. End result, no changes.

 

You can however, chip the ECU of a 9A engine like you would a G60 or VR6.

Gavin