02 malbu crank senor coming up on code car wont turn over

So replace the crank sensor and read the codes again.

Assure that your battery is younger then five, else buy a NEW one~ detach the end of the 1/0 black battery cable as it attaches to the chassis....wirebrush the chassis where the lug attaches...wire the lug free of any corrosion and but this back with a NEW battery installed~...word~

Solid GROUND to the chassis, where the negative side of the sensor needs to park it's negative energy~...the ECU gets confused and the varying voltages and available amperages causes the ecu to panic and issue trouble codes where none are deserved~