The problem is that the van has a judder at low revs when driving at low speeds also has a slight hunting when slowing down. Tried the EGR VALVE, MAP SENSOR,FUEL PRESSURE ASWELL. WOULD APPRECIATE any advice or a Fix Thankyou.
Running Rough, Starting & Power Loss
Try scanning it.
Scaned it and put it on diagnostic systems no faults found and no lights on the dash either????????
About the only system not really monitored on these is the fuel supply,
Though if your scanner can do it a graphic scan of the fuel rail pressure might show up a glitch when this happens.
When was the last time the fuel filter was renewed?
And were the seals on the same good?
Might be it's sucking air.
It wouldn't be the first one of these to have a faulty/leaking filter housing.
Do the live data graph on the pressure.
I have changed the fuel filter and cleaned it all before putting the new one on. Im going to try live data and see what comes up. Hopefully something as its so frustrating.
check vacuum circuit