Heavy black smoke from exhaust, oil leaking and EGR error

[knobby1]

well you are going to have to do some maths then

i cant understand why everyone has missing pids on forscan

the egr stepper motor position

there are 200 steps in 360 degrees

your motor only turns 90 degrees to fully open or fully close the flap

so 90 degrees is 100 percent or 50 steps

all the best.mark

Mk7 EGR valve doesn't have a "flap"...it has a valve, not dissimilar to a normal engine inlet or exhaust valve in shape. So your 90 degrees or 50 steps to 100% means nothing.

Lord Knobrot (Smithy).

[metalworker0]

ok then .. that is out of the way.

i'm totally wrong on this one , but may apply top other egrs

so steps in this instance means nothing unless you could have it open connected up and observe what going on

you are going to have to find egr actual percentage

maybe this is never given on this type of EGR

all the best.mark