Suharianu
Well-known member
trying to troubleshoot error p1556 -charge pressure control
negative deviation
this is a golf 2000 model 196000 km auto.
this problem is not consistent it happens randomaly a few times
a day. I
what I did so far: replaced all vacum hoses.checked arm movement
of turbo actuator- I can move it by hand, checked it with mityvac
and it holds vacum.
I dont have a boost gauge but i did hook up a vacum gauge parallel
to the turbo actuator.
I noticed at 1500-2000 rpm as a slowly press on gas pedal vacum
increases to 15 in Hg as rpm increase vacum drops to about 5 in hg
around 3500 - 4000 rpm.
is it normal behaviour?
negative deviation
this is a golf 2000 model 196000 km auto.
this problem is not consistent it happens randomaly a few times
a day. I
what I did so far: replaced all vacum hoses.checked arm movement
of turbo actuator- I can move it by hand, checked it with mityvac
and it holds vacum.
I dont have a boost gauge but i did hook up a vacum gauge parallel
to the turbo actuator.
I noticed at 1500-2000 rpm as a slowly press on gas pedal vacum
increases to 15 in Hg as rpm increase vacum drops to about 5 in hg
around 3500 - 4000 rpm.
is it normal behaviour?