I have Autometer #5763 100 psi fuel pressure gauges in both cars. They have the Autometer #2246 sending unit. Can I just tap into the sending unit wire going to the gauge and use it for the Power Logger? Any problems doing this?
You shouldnt have to tap anything, iirc my autometer fuel pressure and wideband gauges had a 5v analog output wire for datalogging (the wideband definately does, pretty sure the fuel did too, i was logging both and dont recall having to tap it). You just connect that to your analog input board and configure it in the PL console to read correctly.
The #6 tap on the I/O block has the +5 volts you can use to power the sensor and bring it back to either #3 or #5. You can either ground the sensor to the body or run it to #4 as this sensor has three pins.
Connecting to #4 tap is not to be recomended for anything but a MAP sensor for some reason as Bob can tell you why.
Yes you can , I have done this myself with the same transducer .I have Autometer #5763 100 psi fuel pressure gauges in both cars. They have the Autometer #2246 sending unit. Can I just tap into the sending unit wire going to the gauge and use it for the Power Logger? Any problems doing this?