Audi ur-quattro - notes to 1983 model year wiring

The UK quattro Network

1983 Model Year - notes to Wiring Diagram 13

The main diagram does not identify the pin assignments for the rpm sender (G28) and timing position sender (G4). These are 3-2-1 in both cases, left to right. The diagram also suggests that the shield connection - the leftmost in each case - is connected to the sender. This is not the case - pin 3 should be open-circuit to both pins 1 and 2.
Tracks 41 and 42 show a position for J95 - a cold start pulse relay. This relay was deleted in the 1982 model year and will not be found on the car.
The main diagram shows F25 in track 51 as "normally open". This is incorrect - it is "normally closed" and opened at full throttle to de-energise N54, the full load enrichment solenoid.
Connectors T1, T1a and T1b are on the right of the engine bay (below the air box) and not the left.