Hi Everyone

My RRS TDV8 had no running problems until recently. CEL on, into safe mode.

Scanned, one code, P0191-24. FPR Sensor - Signal Stuck High.

Managed to get it home. Bought new sensor. 5WS40209. Cleared code. Exactly the same. Except it stopped running. Cranking as normal.

So got guy out with Snap-On scanner. Checked live data.

Switched ignition on. Rail pressure showed 135940 Kpa. That's 1359 Bar! With only ignition switched on.

Then cranked - pressure rose to about 137000 Kpa.

Anyone shed some light on what's going on?