[IsuRod1999]

Since 4 month the CEL came on from time to time (about one time a week). The only trouble code which is displayed all the times: 0336 - Crankshaft Position Sensor (CKP) Performance. It mostly came on when I start the warm engine again and begin to drive (RPM about 3000), but there is no effect on the performance of the vehicle when the light comes on.

Vehicle:
1999 Isuzu Rodeo
2.2 l, 4 cylinder
manual transmission

I measured already the following voltages on the three wires to the CKP sensor (connenctors unplugged, ignition ON):
Blue wire: 1.36 V DC
Green wire: 1.36 V DC
Black wire: 0 V DC
When the connector is plugged and the enginge is running: I measure almost the same voltages (1.32 V, 1.32 V, 0 V).

I also measured the three wires to determine if there is a short circuit between the wires or a short circuit to ground. But everything seems ok.

Can you tell me whats wrong with my great truck?

Thank you very much for your help.

Robert