Hi can somebody please help me. I have bought a Doblo high roof 1.9 m jet. it is lagging in power and wont allow turbo to kick in. it is blowing white smoke excessively. i have had the EGR valve and MAF cleaned. Plugged into machine and all that came up was temp sensor on particular filter near the lambda sensor.

Engine management light is on and fault that comes up is engine failure. Oil light is on as well, could this effect the power?? turbo has also been checked and is fine.

Any suggestion would be greatly appreciated.

Thanks guys in advance

Maybe the dpf? Might have contaminated the oil and be unable to regen. BIG MAYBE