MITSUBISHI EVO 4-8 PLUGIN ECU USER MANUAL
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© EMTRON AUSTRALIA PTY LTD MAY 2018
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3.3 Sensor Wiring
5V VRef2 Sensor Supply Pin (Pin 2 of Expansion port)
This is a 250mA 5V output designed to supply automotive sensors.
Sensor 0V Reference Pin (Pin 1 of Expansion port)
This pin should be connected directly to the 0V (Ground) pin on any low current analog
sensor, for example Pressure or Temperature. Figures 3.3 and 3.4 show the correct and
incorrect wiring system.
•
DO NOT
connect the 0V Reference pin directly to the Engine Block or ECU Ground. This
is a dedicated and specialised 0V/ground output for analog sensors.
•
DO NOT
connect frequency-based sensor grounds to the 0V Reference pin; for example,
an Ethanol content sensor. Use Pin 8 (Ground) in the Expansion port.
Figure 3.3. Correct Pressure Sensor 0V Wiring
Figure 3.4. Incorrect Pressure Sensor 0V Wiring
