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Category: Vauxhall
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I am having problems with my dpf. I am driving a 2007 astra

Customer Question

Hi I am having problems with my dpf. I am driving a 2007 astra van. Could you tell me at what speeds or rpm the regeneration process starts
Submitted: 2 years ago.
Category: Vauxhall
Expert:  Shantal-Mod replied 2 years ago.
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Expert:  350matt replied 2 years ago.
Hello to enter into DPF regeneration then the ECU needs to have seen a period of extended load , it uses the reading from the MAF meter to judge this pointtypically you need to keep the rpm above 2000 rpm and half throttle for re-gen to occur - hence you usually have to do this on the motorway
Customer: replied 2 years ago.
I have done this on the motor way and my dpf light stays on. I have just drove for 2 hrs over 200o rpm and light still on.
Expert:  350matt replied 2 years ago.
Hello OK if that doesn't help then its well worth checking the sensor pipe that runs off just before the DPF isn't clogged up and the sensor wiring is also undamaged and corrosion free also consider or even removing it completely as you'll still pass MOT's fine without it, the key thing is to have the ECU re-programmed so its no longer looking for it or On cars where the DPF is removed then typically you get more power and more mpg as it restricts the exhaust even when new