Posted by andrew pethig Andrew Pethig
on July 11, 2015, 6:10 pm, in reply to "Re: DPF pressure sensor with one pipe"
just a thought, have a look at the turbo , waste gate operation or variable geometry actuator , i don't know what the zafira has.
most are vacuum operated or pressure, and problems here will give boost type codes.
in a vairable geometry the actuator should have a smooth operation and feel loose, not tight or notchey also if the actuator is controlled by vacuum check that that works properly like wise if it works from pressure.
done a few just lately with boost codes, and waste gate operation have been the culprit
