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) .
110ps Transit Mk7 Euro 4 have a tendency to develop a vibration at about 1690rpm. It can affect any Euro 4 diesel Transit but its very rare on all models apart from the 110. Any repair or tuning that adds torque to that RPM point or corrects a loss in the case of a repair, can induce the vibration & its tricky to solve. Its a balance / calibration error, an argument between 2 maps if you like. Not something that can be solved by someone like myself for various reasons. Here’s one – you adjust the calibration ( mapping ) load it & its gone, 300 miles later its back. Why ? Because some short term fuel trims via an adaptation process are reset ever time you reprogram the engine ECU so full torque, via a slight fuelling reduction isn’t available until the adaptation process completes. As you can imagine that complicates any fix. For this reason, vantuner no longer tunes or works on 110ps van’s.
130ps MK7 Euro 4 Transits, I consider the 130 fragile & unreliable. The piston crown weakness that blights the 2.2 is most prominent on the 130 , & the usual EUro 4 issues ( injector wear, hunting, egr, turbo actuator failure) seems to affect the 130 more so vantuner no longer tunes them, but will carry out other repairs like recalibration, EGR delete, software updates etc.