Enhanced IO - Connecting


Connecting the Enhanced Input Output (EIO) Interface Unit


USB MPVI Pro Interface Only



Serial Interface Only


Sample Relay Circuit
The Following circuit uses a Bosch Automotive Relay
Part Number 0-332-204-150
When and how the relay(s) turns on and off by tracking any engine variable or A/D channel value is configured in the VCM Scanner program. They can be used as a status indicator or external high current device control. NEVER use the interface to control relays where safety is an issue or vehicle damage may occur.
Do not forget to add the driver protection fuse.





Sample Light Circuit
The Following circuit uses a Radio Shack 276-272 12v Led with built in resistor and a Radio Shack 272-331 Panel Lamp using the supplied pigtail connector. Both lights come in their own ready to mount housing.
When the light(s) turns on and off by tracking an engine or A/D channel values are configured in the VCM Scanner program. You can use any type of light/color you want as long as it does not draw more than 150 milliamps when lit. If it does you will need to add a driver relay to isolate the interface unit from the larger current draw (see driving a relay diagram).
Do not forget to add the driver protection fuse.



Sample Wide Band Oxygen Sensor Controller or EGT sensor circuit.
The following circuit shows the connection between the 0- 5v analog output
from an aftermarket wide band controller or EGT sensor (exhaust gas temperature) using the supplied pigtail connector.
Refer to the manufacturer’s documentation on how to connect and configure their device.
The Device can also be a 0-3 volt controller or anywhere in between the 0- 5 volt range.


The analog signal may be connected to any of the four inputs. Configuration of each channel is determined through software setup in VCM Scanner.