Cummins Tach Sensor Wiring

Is there a simple diagram or better yet a picture on how to wire this.

Cummins tach sensor wiring.

I measured about 3v ac at the signal wire. It fits a x 16 tpi threaded hole and is used to sense the passage of gear teeth. The original is no longer available. 8912 flywheel gear sensor dual output x 16tpi 2 1 2 long.

The tachometer is intermittent random. The swaphelper is an electronic signal conditioning device. Provision has been made for finer adjustment if. T urn key ìonî ó tachometer pointer should move to ìzeroî.

Cummins will sell the sensor but they don t have wiring diagrams available. By utilizing the oem dodge cummins tachometer sensor whether cam or crankshaft position respectively the swaphelper then provides the correct signal to the receiving truck s ecm. Having a little trouble with the wiring on this need a simple wiring for dummies course. I am replacing the tach because it will intermittently stop working.

My 1997 dodge ram with it s 12 valve cummins diesel engine has had a strange intermittent problem that s gotten worse. Calibration and adjustment the tachometer is factory calibrated to 3 full scale accuracy. If not check wiring. There appear to be 2 harnesses red black wires in 1 green white in the other.

Start engine and check gauge for proper operation of tachometer. You have to keep the cam sensor and the crank sensor wires seperated until you get to the sensor then wire them together if you run them together they will pick up signals from each other and cause problems the shielding on the wires is crap i think you can wrap one in aluminum foil but that is a pain and doesn t look very good. When wiring is complete connect power. Provide a smooth reliable tachometer signal to your cummins converted truck.

Tach needle bumps when i switch on the key but no rpm reading.