p1187 help

[scottyvito]

Every time my van comes onto boost it cuts out and i get a error code p1187

 

[scottyvito]

Also rail pressure on idle is 304.0 bar is this low?

 

[Giantvanman]

That error code is shown as :-
P1187 fuel rail pressure inspection
P1187 Rail pressure monitoring Control variation < 1500/min (rpm)
P1187 Rail pressure monitoring Control variation < 1500/min (rpm)
P1187 Rail pressure monitoring Control variation > 1500/min (rpm)
P1187 Rail pressure monitoring Control variation > 1500/min (rpm)
P1187 Rail pressure monitoring Leakage
P1187 Rail pressure monitoring Leakage
P1187 Rail pressure monitoring The maximum pressure has been exceeded.
P1187 Rail pressure monitoring The maximum pressure has been exceeded.
P1187 Rail pressure monitoring The pressure control valve jams in the closed position.
P1187 Rail pressure monitoring The pressure control valve jams in the closed position.
P1187 Rail pressure monitoring The rail pressure cannot be built up.
P1187 Rail pressure monitoring The rail pressure cannot be built up.
P1187 Rail pressure monitoring The rail pressure is too low.
P1187 Rail pressure monitoring The rail pressure is too low.

I don't know what the rail pressure should be but looking at the codes….

 

[BlackC55]

Check it on boost. I expect its low under load. Pump, fuel filter are common causes.