on February 17, 2011, 10:01 pm, in reply to "Re: Vauxhall Corsa D 1.3 Z13DTH 2009 - Completely flat until over 3000 rpm #"
>>>As far as I understand it the AFR cannot be altered because they run on excess air<<<
You would have thought so wouldn't you.
But not so, we are now controlling the AFR in diesel engines via a throttle system and EGR.
We are using the Oxygen sensor as a feedback system on the current AFR ratio within the system
and trimming the "throttle" to suit.
Regards Mark
Modern cars, Its all wizardry and witchcraft