First off going to repost the fault codes that were present on Dec 1st before i cleaned the Air Doser ( long time ago i know )
P0299 : Turbo pressure electrovalve control
Characterisation : Flow too low
Status : Permanent fault
Location : local
Variables associated with the fault
Engine speed : 2570 rpm
Turbo pressure. : 1729 mBar
turbo pressure reference value : 2200 mBar
turbo electrovalve open cycle ratio : 049 %
output injected : 044 mg/stroke
P1470 : Air heater throttle position copy signal
Characterisation : butterfly jammed
Status : Permanent fault
Location : local
Variables associated with the fault
Engine speed : 0000 rpm
engine coolant temperature : 071 °C
heater throttle open cycle ratio : 0010 %
heater butterfly repeat voltage : 4098 mV
post operation engine status : start of power latch timer
P2123 : Inlet air heating motorised throttle unit
Characterisation : Short circuit to positive
Status : intermittent .
Location : local
Variables associated with the fault
Engine speed : 0000 rpm
Heater throttle setting : 0010 %
heater throttle open cycle ratio : 082 %
battery voltage : 13.45 V
Status of engine : Post-operation power latch
P1351 : Preheating relay circuit
Characterisation : Relay supplied and Plugs never supplied
Status : Permanent fault
Location : local
Variables associated with the fault
Engine speed : 0771 rpm
engine coolant temperature : 009 °C
battery voltage : 14.36 V
pre-heat relay control : unspecified value
preheating relay status : Active
P2120 : Air heater throttle position copy signal
Characterisation : opening too great
Status : intermittent .
Location : local
Variables associated with the fault
Engine speed : 2313 rpm
Heater throttle setting : 000 %
heater throttle open cycle ratio : 0010 %
output injected : 000 mg/stroke
engine coolant temperature : 074 °C
P0100 : Flowmeter signal
Characterisation : Air flow not plausible
Status : intermittent .
Location : local
Variables associated with the fault
Engine speed : 2891 rpm
air flow per cylinder : 1182 mg/stroke
EGR valve position : 027 %
output injected : 042 mg/stroke
air flow setting : 827 mg/stroke
P2032 : Catalytic converter downstream temperature signal
Characterisation : Short circuit to earth or value too low
Status : intermittent .
Location : local
Variables associated with the fault
Engine speed : 3116 rpm
catalytic converter temperature : 025 °C
Status of the regeneration : Regeneration process active
output injected : 031 mg/stroke
Status of engine : Engine operating
As you can see P0100 was present
As for the current state of the car now all i can say is Mike you have done better than i could, i also could not understand DPF and Service light even though we had data to show it was not at risk and had in fact been regenning as it should.
As for the "normal" driving bit,that is harder to explain but i will try again and Mike will be the better judge as to if it sounds/feels/pulls better now.
When it was running well it did rev freely and pull well and had plenty of low down grunt, but was never one to get of the starting grid like a greyhound, however 3rd it did seem to be its have fun gear, 4th and 5th were just for dual and motorway work and then it did come into its own, 5th gear at 70 mph around 2k revs and plant your foot and it would pull like a train.
When it was playing up, and by that i do not mean the kangeroo stuff you could plant your foot in 3/4/5 and no get up and go,felt flat, but if you lifted off for a split second and then planted your foot it behaved like it should.
Mike on a side note i did look at resetting the additive counter but having a Lexia for only a few weeks i never managed to work out how, and i think you may and me were on the right lines that the software in the BSI/ECUs maybe set to throw up a so called end of life on the DPF.
Fingers crossed you have now got it sorted, but if you use the cruise or speed limiter and it goes offline you have got the P0299 code logged, and just for peace of mind i think you need to change that vacuum valve thingy if you can.
I maybe the ex owner and maybe giving myself an inwards kicking but i really am glad that you have got closer to solving the problems with it than i did and i do want to see it again on the road.
Oh remember it is a blinking heavy car for a 1.6 lump and replied in PM to your other question
Colin