Chasing a fuel issue

[andrewb70]

I hear ya. Hey man, thanks for the help. Gonna see what I can do.

Keep us posted.

Andrew

[J-440]

Well I installed the fuel pump controller but I’m not getting a signal from my tach. The directions say to hook the wire up to the negative side of the coil. I rechecked the wire to make sure there were no rips or tears, used a multimeter and even a jumper wire. Nothing. And why the negative side? Shouldn’t the tach signal be on the positive side of the coil? The controller is working bc I can hear the pump speed drop after a few seconds, just no tach signal.

[andrewb70]

Well I installed the fuel pump controller but I’m not getting a signal from my tach. The directions say to hook the wire up to the negative side of the coil. I rechecked the wire to make sure there were no rips or tears, used a multimeter and even a jumper wire. Nothing. And why the negative side? Shouldn’t the tach signal be on the positive side of the coil? The controller is working bc I can hear the pump speed drop after a few seconds, just no tach signal.

The tach signal always comes from the negative side of the coil because that is how the coil is triggered. Positive always on and at the right time the ground is triggered to get spark.

Andrew

[J-440]

Good info, thanks. Guess I’ll be sending it back and see what they can diagnose.