Sleep well Kev, thanks for your help

Ok, here's what I did.

Disconnected ECU, checked OHMS reading for sensor switch:

Stand up: flickering between 00.1 - 00.2
Stand down: no reading

I then reconnected everything & tried to reset the ECU. Zone 61 read 0, Zone 62 read 1. When I flicked the kill switch on/off as per the guidance Zone 62 did not clear the memory to 0. Don't know if it is of any significance, but when I flicked the kill switch to on that whirring noise (petrol pump priming?) stayed on...until I flicked it off again.

So tried starting her up & nada. The error code 19 was on the display again with the engine light on.

I also removed and opened the sensor itself up. Clean as a whistle with all parts apparently functioning visibly well.

Not sure what to do now?

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