What's the voltage reading ? At what revs is the reading ?
The 15 % throttle reading.....I'm not sure on this ...it's not always the case that throttle off is 0 % and full load 100 % ....seem to have in my head on common rail passats and other common rail VAG stuff throttle off can be around 10 % , I will have a look at mine in Monday vcds is at work .
Has your car got power tune and dpf delete software done ? Are dpfs still in place ?
You was on about boost dump valves , I have never seen dump valves on diesels
Think of this .....why do petrol turbo cars have dump valves ? ? ......to stop turbo stall when throttle butterfly goes closed between gear changes or over run
What do diesels not need to control fuelling ??......a closed manifold by the use of a butterfly , diesels have open manifolds ......yes they have inlet butterfly's flaps but they are not used like a petrol engine , they are there for anti shudder on switch off , partial closing off in egr operation and partial close when in regeneration to drive inlet temps up .
But as I said in a earlier post for the engine to carry on going there has to be fuel delivery from injectors or something in the program that is keeping the injection duration open when throttle pedal is off .
I will look at my throttle readings when I'm at work aswell as throttle percentage could you see the throttle track volts ....normally data blocks something like track 1 volts and track 2 volts the volts are more telling because throttle percentage is a algorithm of both track voltages added together .
I will get back when I have had a look at mine ( 4.2 tdi )
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