forum.audiv8.com Foren English Audi V8 Forum V8 -92 has no spark

Hi! My friend has the big problem with his -92 v8.
No spark,
- hall-sender on right side distributor has been changed, still no spark.
-door lock microswitch ok
Does anybody have a tip to fix this problem?
Maybe the ignition timing sensor should be change next,
VAG-com says the (G4) sensor fault, I think its just a timing sensor.
But is it possible that VAG-com says (G4) fault because we cant start the engine?
Hope somebody can help, because he want to drive V8, not only repair it! :-)
-Jukka