Cheers drag. Did you solve your problems with new g450? What type of engine and how many miles/km
Sam ( If I may call you that)
I have fitted 2 x G450 sensors over the last 3 weeks to vehicles having a DPF sensor fault.
One of them also had pre DPF temperature sensor fault with disappeared when replaced but the G450 fault remained.
As above engines were a
- BKS with 220,000km both sensors G450 and temp showing faults and when replaced all faults cleared and have not returned to date.
- CASA with 275,000km G450 replacement cleared fault and it also has not returned.
One thing to be observant of I believe is the pre DPF mbar reading the G450 displays after replacement just to also give a gauge to how much your DPF is restricted.
I did some logging on pressure and also got some logged info from Hedditch (thank you) from a car with no issues and similar kms.
I can now reasonably see how much restriction should be seen in a working but not new DPF.
- at idle about 7- 12 mbar (1 mbar is 0.014 psi)
- rev car while standing still with no load 100- 120 mbar
- at cruise (80 km not a lot of load 80 m-100 mbar.
- WOT full boost at about 80 kph anything up to 400 mbar (that's nearly 6 psi back pressure and I would think be getting up toward max you would want but that's a guess)
All these above were from cars with no faults but over 200,000 kms on the clock.
Did you also adapt the new G450 sensor after fitting? i.e. tell the car you had fitted a new sensor ?
I did and it changes you DPF loading to what I would think the ECU calculates from the parameters it has in its settings as the old sensor may have not been accurate..