how ever we can test the cam sensor with any analog meter, (needle type)
key on, CMP pin 3 must be 12vdc, if not fix that first
key on, connnect meter black to ground (metal on engine or battery neg lug)
meter red lead to pin 2, above. pin 2 is the shielded signal line.
we do a thing called back probing, use a needle or pin and back probe the CKP
pin2
crank engine and it will go 0v, 4v , 0v, over and over, this is the CMP working., a true hall sensor.
this dont prove its timed right but proves it works and is spinning.
the ECU has a flash pin, fault lamp pin 38
connect thee red meter lead to pin 38 on ecu, using backprobing method (all tech can do that, google how to back probe car wiring)
key on, then needle may pulse does it? is there a pattern to it, yes, BINGO.
if you can get the needle to act as a lamp on pin 38 , you can crank the engine for 5 seconds.
release key and read the failure codes on pin 38.
like flash flash, pause flash, long pause repeats.
just like a toyota in 1995, same deal. but on the toyota the lamp is built in to the cluster, but no on your car, its MISSING , so says the schematc.
id do all i could, to learn how pin 38 works, sure would!!
this is the way to back probe.
http://www.fixkick.com/INJECTORS/NOID101.html#probe
we dont use that method here, banned in 1995 it was in uSA.
key on, CMP pin 3 must be 12vdc, if not fix that first
key on, connnect meter black to ground (metal on engine or battery neg lug)
meter red lead to pin 2, above. pin 2 is the shielded signal line.
we do a thing called back probing, use a needle or pin and back probe the CKP
pin2
crank engine and it will go 0v, 4v , 0v, over and over, this is the CMP working., a true hall sensor.
this dont prove its timed right but proves it works and is spinning.
the ECU has a flash pin, fault lamp pin 38
connect thee red meter lead to pin 38 on ecu, using backprobing method (all tech can do that, google how to back probe car wiring)
key on, then needle may pulse does it? is there a pattern to it, yes, BINGO.
if you can get the needle to act as a lamp on pin 38 , you can crank the engine for 5 seconds.
release key and read the failure codes on pin 38.
like flash flash, pause flash, long pause repeats.
just like a toyota in 1995, same deal. but on the toyota the lamp is built in to the cluster, but no on your car, its MISSING , so says the schematc.
id do all i could, to learn how pin 38 works, sure would!!
this is the way to back probe.
http://www.fixkick.com/INJECTORS/NOID101.html#probe
we dont use that method here, banned in 1995 it was in uSA.
http://www.fixkick.com