Speed or Position Sensors

Position Speed Sensors provide information to the ECM about the position of component, the speed of component and the change in speed of component.
Camshaft position sensor (also called G sensor)
Crank shaft potion sensor ( called NE sensor)
Inductive sensor 
Magnetic reluctor sensor


Instructions


obtain an electronic inductive distributor.
visually inspect condition,
test ignition primary amplifying module for serviceability.
test pickup coil for serviceability.

		Specifications toyota	Actual ohms	Serviceable?
G Pickup Coil (G+ G-)	Cold	185-275	243 ohms
NE Pickup Coil NE+ NE-)	Cold	370-550	486 ohms

Check Air Gap; Ive used the brass feeler gauge for measuring the air gap on Magnetic Distributor.

Adjusting the relector air gap

	Specifications	Actual	Serviceable?
G Pickup Coil	Air Gap: 0.2 – 0.4mm (0.oo8 – 0.016 in.)	0.20mm 0.008  in	no
NE Pickup Coil	Air Gap: 0.2 – 0.4mm (0.008 – 0.016 in.)	0.20 mm 0.008 in	no

Signal circuit: refer to the signal waveform and compare.
Spin the distributer either by hand.