ECU replacement cost?

[Brientim]

The above is near on the same as what I experience with my Passat.

Crankshaft position replaced, next day it reoccurred. The common occurrence that I noticed was it then mainly occurred when hot. I.e after running.

The autoelec final trace the fault to a single wire in the engine that was returning an out-of-range reading which had a faulty connector.

[minniemousey]

That's not what I want to hear.... The crankshaft position sensor was replaced and everything seems to be back to normal. Cars are too bloody "clever" for their own good these days.

[Brientim]

There is very simple engineering logic underpinning the design, that is prevention is better than the cure by preventing catastrophic failures. However, if the diagnostic is not simple, the problems persist, preventative maintenance costs increase or the car become unusable. Too smart for own owners good!