So!

120 Multijet Doblo giving me street talk about not wanting to run for more than a few seconds today. The AA had said blocked DPF due to a faulty EGR despite 20,000 motorway miles since August. After stranding the missus on a busy section of the A14 with no hard shoulder, I had an idea. No it wasnt a match and some flammable liquid.

The EGR on our 52 plate JTD had been blanked off a donkeys age ago so, I though I would try the same thing with the Multijet.

Blanked it off with a bit of laptop HDD caddy metal.

Jump started the engine with the 52 plate

Reset the error codes.

Revved the MJ to its limp mode limit of 3100 RPM. It got hot, very hot but didnt die as it did prior to the EGR.

Engine managment light came on but no messages. It had been offering 'engine failure' as an excuse despite the thing clearly not.

Huge black soot burn mark on the tarmac showing that something was moving somewhere.

Took it for a spin up the A1 and after about 10 minutes I headed home and gave it the full beans.

Strewth! It went off like a scolded cat, huge plume of cack and proper decent TDI acceleration. Gave it some more Italian Tune up driving home and now the thing purrs like a 120 MJ should.

Engine light stays on but that only gives an EGR fault code - no other codes present and everything else does what it should.

Happy days then!

So was the DPF light illuminated in the first place

no, just engine light but then engine failure after the AA fannied around with it.

I've only seen the DPF light come on while it was regenerating which was ten minutes up the road from the dealer. All other times its been the engine failure messages. In Devon, we had to put the hazards on as all 120 BHP decide to go elsewhere leaving us with all the power of a sneeze on a steep hill. Since then apart from a stutter or two it had been fine. Then the engine light came on for the missus resulting in the AA call out.

DPF won't have had anything to do with it then. If DPF was blocked then the DPF warning light would have been on.

But the nice AA man said it was so.

I didnt believe him either but its fixed for now.

AA and RAC men and women (for the PC) are often wrong.