Hi I recently bought a 2006 transit connect van it has now started giving me problems when driving some times the glow plug light will flash and van cuts out turn key on and off and van restarts also some times van is a bugger to start jus turns over until you give it some easy start other times it starts first turn of the key I've plugged in my diagnostic (only a cheap one) its coming up code p0251 found this to be related to fuel pressure or a bad sensor I've replaced fuel filter I'm going to do leak off test tomorrow on injectors but was wondering if any one as fixed the same problem another way thanks freeze frame data at time of error was showing 

Rpm   2104

Vss  85kmh

Tp     31.4

Frp     99000.0 kpa

Load pct    47.8

Etc 69

Map  154 

99000 kPa is nearly 1000 times atmospheric pressure, if that reading was true then your van would explode. It looks like your Fuel Rail Pressure sensor is not working properly, and given the strange figure it is probably not working at all and that is a default value for a non working sensor.

On 1/14/2021 at 9:44 PM, Tizer said:

99000 kPa is nearly 1000 times atmospheric pressure, if that reading was true then your van would explode. It looks like your Fuel Rail Pressure sensor is not working properly, and given the strange figure it is probably not working at all and that is a default value for a non working sensor.

Thanks for your reply I will give that a try