I Have a cheap Elm OBD scanner used with Torque Pro. I can't seem to get any readings for fuel pressure from my Y2000 XK8 - can anyone else do this? It's perfectly possible I have misunderstood the values I should be reading for this.

 

The 4.0 cars don't have electronic fuel pressure - you have to measure it with a mechanical gauge on the fuel line. There is a schrader valve on the fuel line at the front of the engine where you can take a reading.

 

Thank you. I thought that was the case.