does the engine run ok, then you rev it, then, when it returns to tick over it surges???
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Don’t worry about keeping us informed. That’s what we (me) want.Changed the dpf control valve and checked there was vacuum getting to it when the engine is running. Engine starts and is fine for two or three minutes then starts to hunt on tick over, if you slowly open the throttle it chugs until you reach about 1500 rpm. Have yet to give her a good run and hopefully early next week can do ten to fifteen miles at 2500 to 3000 rpm if that sounds about right. Really do want to get this sorted now as not happy about long trips until she sounds right. Sorry to keep popping up but kind of loosing confidence in the van at the moment.
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While the throttle body was off I tested the egr valve using a vacuum gauge which showed no vacuum leaks. I changed the electro pneumatic controller which sits above the engine centrally and has the two vacuum pipes, one from the servo vacuum side and one to the egr valve itself. I have checked there is a vacuum reaching it and also that the pipe to the egr valve is not blocked.Don’t worry about keeping us informed. That’s what we (me) want.
You did check your EGR whilst TB off? Did you apply vacuum and test EGR again?
You say the DPF control valve is that what you mean?
Keep us updated ,I feel your pain as i am having similar issues at the moment and it sounds like plenty people have had the same. Keep your chin up it will get sorted it s all good information for usChanged the dpf control valve and checked there was vacuum getting to it when the engine is running. Engine starts and is fine for two or three minutes then starts to hunt on tick over, if you slowly open the throttle it chugs until you reach about 1500 rpm. Have yet to give her a good run and hopefully early next week can do ten to fifteen miles at 2500 to 3000 rpm if that sounds about right. Really do want to get this sorted now as not happy about long trips until she sounds right. Sorry to keep popping up but kind of loosing confidence in the van at the moment.