audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Removing and installing injectors > < Adjusting commencement of injection
Checking injectors
Checking injectors
–  Start engine.
–  Read measured value block, Display group 13 (cylinders 1 and 2), engine running at idling speed.
t  Specification: –1.50 mg/H...+1.50 mg/H (milligrams per stroke)
–  Read measured value block, Display group 14 (cylinders 4, 5, 6), engine running at idling speed.
t  Specification: –1.50 mg/H...+1.50 mg/H (milligrams per stroke)
–  If one or more of the values is outside the tolerance, swap round the injectors (except the injector for cylinder 3).
  Note
The injector for cylinder 3 contains the needle lift sender.
–  If the fault moves along with the injector, fit a new injector → Chapter.
–  If the fault remains on the same cylinder, check the compression.
   

Removing and installing injectors > < Adjusting commencement of injection