Ghost issues

[Michaelc5086]

Checking resistance - (pic)
Technical Data
Terminals Resistance
1 & 2 300-400 Ω

Ensure ignition switched OFF.
Disconnect CKP sensor multi-plug.
Check resistance between CKP sensor terminals (pic)

Cheers cully that's what I've done and the sensor isn't giving a resistance reading (no circuit).

Checking signal - (pic)
Technical Data
Terminals Voltage
1 & 2 1-4 V ac (fluctuating)

NOTE: Disconnect injector multi-plugs before cranking tests, to avoid damage to catalytic converter(s).
Ensure ignition switched OFF.
Disconnect CKP sensor multi-plug.
Adjust voltmeter to measure alternating current.
Briefly crank engine.
Check voltage between CKP sensor terminals (pic)