Ecu light codes help on 20xe

[sr-rompa]

Here am the codes I have flashed off on my xe nova
31 Engine RPM signal (crankshaft sensor) No signal
55 Engine Control Unit (ECU) fault Renew Engine Control Unit (ECU)
66 Carbon Monoxide (CO) potentiometer High voltage
73 Air Flow Sensor (AFS) Low voltage
93 Hall Effect Switch (HES) Low voltage
And ideas and help welcome to clear them

[meritlover]

if you repair the faults, or singular common fault to what looks like a power, ground or wiring issue they will clear.

[Martin.p]

Are these codes that are there now you've put engine in?
Or have they appeared after time?
Was car running fine and now not?
If you want to just 'clear' the codes then you remove the battery lead (I alway do both just to be sure)
For 30min min.
Then re attach and run car. This clears codes and if anything is still wrong they will log again.
It may take a bit of a run to log fault if its still present.

Sorry if that's not what you mean :)