Whilst driving normally at 30 mph my van gave a little "cough" and the
EDC warning light illuminated, but no other symptoms. In due course I
realised that I was in "limp home mode" with only 3000rpm maximum revs
and no turbo function.
A Bosch injection garage diagnosed the fault (£47.00) as a faulty fuel
rail sensor which I promptly replaced (£123.14), only to find
absolutly no difference at all.
On returning to the garage the mechanic again checked the system but
still came up with the same fault, this time suggesting that the fuel
regulator, main brain or even just a break in a wire could be the
problem even though his £8500 diagnostic kit pointed to the fuel rail
sensor, and was unable to say how much it would cost.
This is a very recent problem and the van seems to drive OK, subject
to limp mode.
Has anybody had this or similar problems?