Error codes: 158 and 163 Overspeed?

[ac427]

Symptoms: I start the car and the idle is rough as hell. I turn off the engine, then restart a few seconds later and the idle is the smooth straight six loveliness.

So i read the codes. It appears 158 and 163 are due to overspeed. Overspeed of what is the question. Could it be crank revolution speed?

163   internal: Resets Master

Error frequency : 1

Logistic counter: 36

   Engine speed                              1520.00  rpm
   relative filling                            16.80  %
   Cooling water temp.                         85.00  degrees C
   Supplier voltage HR                         13.60  V
   aufgetreten vor (rel. BZ)                    2.20  h

   Abort/Function-Time out
   Error not present
   Sporadic error
-------------------------------------------------------------


158   internal: Resets Slave

Error frequency : 1

Logistic counter: 36

   Engine speed                              1520.00  rpm
   relative filling                            16.80  %
   Cooling water temp.                         85.00  degrees C
   Supplier voltage HR                         13.60  V
   aufgetreten vor (rel. BZ)                    2.20  h

   Abort/Function-Time out
   Error not present
   Sporadic error
-------------------------------------------------------------

[sapote]

So i read the codes. It appears 158 and 163 are due to overspeed. Overspeed of what is the question. Could it be crank revolution speed?

Not about speed;
it was listed as the status at the moment, just like coolant and voltage.

code is about master and slave CPU were reset.