Can anyone offer any advice. I've got an 04 Signum 1.9cdti 150 and have the spanner and car em light on the dash. It's been diagnosed as fault code P1901, which I'm led to believe is the DPF? As far as I know it regenerates, as I took it out for a thrash yesterday and it appeared to do it. I've since had the em light cleared to see if a regen would solve the issue, but it came back on again straight away. Vx tell me its either a blocked DPF, EGR valve or split intercooler pipe. Throwing money at the problem isn't an option as I've recently had to fork out for clutch and DMF
Can anyone help or point me in the right direction please???
Oh and I've also had a slight intermittent misfire since I bought it a year ago, only between 1500 to 2500 rpm, any speed and any gear, engine warm and cold. It just seems to do it when it feels like it and no-one has been able to diagnose so far.