All to easy to blame DPF cos of a few vehicles have had issues
More than a few!
All to easy to blame DPF cos of a few vehicles have had issues
The glow plug lamp doubles as the EML on diesels, which any fault with anyone of the 20-30 sensors & actuators could trigger. The fact the vehicle is going into limp mode (reduced running) does narrow it down a bit i.e. something that could have a detrimental affect on the engine is its not right. All to easy to blame DPF cos of a few vehicles have had issues but a fault on the dpf system would normally put dpf & coil lamps on.
The nature of the fault would suggest possible wiring but if you can find out what fault is actually stored in the ECU i'd have a better idea.
You say its had a revo??? have they tried it without? worth ruling out any issues there.
More than a few!
More than a few!
If yours is a 51 plate it's a mk1 and it will be the tps or wiring and no dpf, just a simple cat and no lambda at all.
Most likely be the tps itself, it happens on the mk4 golf too and it's the same part