Vantuner no longer tunes them, as they are not reliable & any tuning will add more risk to already over sensitive injection system.
One issue , on this Delphi injection system setup, is tolerance on fuel rail pressure deviation, anything over approx 60 bar from spec at full pelt (1600 bar) & you have limp mode. A standard van is kissing this limit anyway so even tuning which avoids any rail pressure increase directly will lower this margin..So they can run good apart from going into limp mode under full load intermittently.. What a load of bollocks.. The creators should be ashamed of themselves – In ancient Greece, the word Delphi may mean “Womb”.. Clearly Fords 1st common rail offspring has a birth defect.
Problem solving in cases like this van’s relies on a tuner having access to something called a description file, an “A2L ” a ” Damos ” , These illegally gained manufacturer’s files identify maps & functions & would in this case allow the rail pressure deviation tolerance data to be increased, but no such files exist ( outside of Fords Dearborn U.S.A HQ) for Fords of this vintage so no go sadly.
If you need speed limiter removal , thats no problem. For EGR delete ( assuming your EGR valve is currently working ok) just disconnect the vacuum pipe that operates the EGR. You wont get an engine light from doing this, same with fitting an EGR blanking plate. You’ll get a P0404 engine trouble code thats all, as this is a Euro 3 engine & EGR performance was not as crucial , unlike with later Euro emissions regulations, where any EGR issue will light the MIL ( Malfunction Indicator Lamp on dash) .