xr3iturbo

can any 1 actualy tell me what wire is the +poss on the sensor
thanks tommy

JesseT

On the efi CVH it's the upper pin. You should get a positive voltage when you approach it with some iron and a negtive voltage when you move the iron further away. Only movement is detected, not stationary metal objects.

xr3iturbo

ok jesse so i can just use the spare 1 that i have on another build conect volt meter up to it and wave bit metal in front and it will give me voltage is that right

thanks for help i am going to drill hole in bulk head tonight for wiring
for the ms any help with this ecu would b great

thanks again
tommy

SafeChav

These sensors dont have a positive terminal, they are inductive sensors so they produce and AC square wave output

JesseT

safechav:
They only produce an AC signal when the trigger teeth come and go. It doesn't really make a difference if you call the pins plus and minus or whatever, the point is that they must be wired the right way round.

xr3iturbo:
Waving is a bad word to descride what you should do. For instance, bring the sensor close to metal and stop it there. When you dont move it, you're not getting any voltage from it. Then rapidly pull the sensor away from the iron with a multimater connected and see if you get a brief positive or negative DC voltage reading. When you have it wired the right way round to the multimeter, it should give a negative reading when you take it further from metal (iron). If you just wave something in frot of the sensor you are just seeing bouncing +/- readings.

SafeChav

JesseT Yea i know what your saying, and it makes sense was just a bit at what was going on at first

xr3iturbo

thanks alot jesse will get it done tonight