info for you regarding pin numbers on the ecu and pin numbers on the sensors
to test the power too the camshaft sensor set the multimeter to volts DC
unplug the sensor and probe pins 1 and 3 you should read 5v with the ing on (engine not running)
wiggle the wires that are exposed in the loom and see if you loose the 5v supply
if you do........
probe pin 3 and put the other prob on 12+ you should read 12v this is checking the earth wire from pin 3 back to the ecu wiggle the wires to see if the voltage drops off
if it drops off the earth path back to the ecu is broken
if it dosn't.........
probe pin1 and put the other probe to a good ground point this is checking the sensor supply line (5v) from pin 1 to the ecu wiggle the wires to see if the voltage drops off
if it drops off the supply path from the ecu is broken
if it dosn't..........
turn off ignition wait 5 mins then disconect the battery
unplug the ECU plug
set multimeter to OHMS you are measuring resitance now! short probes together this gives you a low reading remember it (1-3ohms ish)
this is the figure you are hopping to see when you test the last wire
probe pin 2 on the sensor white plug(wire side) with the other probe, probe pin 18 on the ecu plug (wire side)
you should see the same low resistance reading as when you shorted the leads
wiggle the exposed wires in the loom
if the resistance go's low to high while wiggaling it would point to a broken sensor wire