are you talking the gray-red wire from ECU? +5vdc refr.
it dont run take level
just tps, EGR map, and tank pressure (not level)
the ref, is s power regulator and we can ohm that out. its undefined turned off, and when on , you can ohm power busses...
it say 100 ma? or up to 250ma, for current, max , just a guess.
but maybe 25m max for the 3 sensors?
the TPS uses 0.003 amps 3mA)
what wire are your touching. name color part and pin numbers.
the actual fuel gauge, sender
gets power from the cluster power;s internal 12v power buss.... its not 5v at all.
cluster 12v to meter, and meter to ground
then the meter is tapped, and goes to the tank sensor.
the varying voltage at the sender to gauge tap, is measured by the ECU and only flags, low fuel. there is no 5v here.
if 5v really drops? unplug the egr map then the tank pressure sensor, if 5vdc returns the one pulled is bad if it restores, as you know , im sure....
the ecu senses the fuel level on the yellow-red wire,
i need wire colors to answer clear. or pin numbers of devices.
it dont run take level
just tps, EGR map, and tank pressure (not level)
the ref, is s power regulator and we can ohm that out. its undefined turned off, and when on , you can ohm power busses...
it say 100 ma? or up to 250ma, for current, max , just a guess.
but maybe 25m max for the 3 sensors?
the TPS uses 0.003 amps 3mA)
what wire are your touching. name color part and pin numbers.
the actual fuel gauge, sender
gets power from the cluster power;s internal 12v power buss.... its not 5v at all.
cluster 12v to meter, and meter to ground
then the meter is tapped, and goes to the tank sensor.
the varying voltage at the sender to gauge tap, is measured by the ECU and only flags, low fuel. there is no 5v here.
if 5v really drops? unplug the egr map then the tank pressure sensor, if 5vdc returns the one pulled is bad if it restores, as you know , im sure....
the ecu senses the fuel level on the yellow-red wire,
i need wire colors to answer clear. or pin numbers of devices.
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