7.8 Advanced Engine 7 ADDITIONAL ITEMS: BEYOND BASIC FUEL AND IGNITION CONTROL
• Nitrous pressure
• Exhaust backpressure
• Pedal position
• Suspension travel
The MS3Pro has three built in 0-5 volt inputs. You can also bring analog sensors in over the CAN bus.
If you’re using a potentiometer input, the exact resistance range of the potentiometer is not important as long
as it does not draw too much current. Any potentiometer with a 500 ohm resistance or greater between the supply
and ground voltage will be fine.
Each sensor channel is turned on individually. Once it is enabled it will appear in datalogs. The channels are
named sensor01, sensor02....up to sensor16.
7.8.4.1 Source To enable a channel, change the source from "off" to a specific input. The Analog In 1 through
Analog In 3 are built into the MS3Pro. CAN ADC01-24 are analogue inputs collected from a remote CAN connected
board(s) and must be configured in the CAN section before use.
7.8.4.2 Field Name You can set a description of the field, to improve readability.
7.8.4.3 Transformation This specifies how the raw 0-1023 number the MS3Pro sees internally should be
turned into something meaningful to you. These are your options.
• Raw - just the raw 0-1023 number. This is mostly of use for troubleshooting.
• Linear - apply a linear conversion from 0V to 5V values. This is appropriate for many sensors
• Same as MAP - if you have an identical pressure sensor as the main MAP sensor
• Same as CLT - if you have an identical temperature sensor and bias resistor as the main CLT sensor
• Same as MAT - if you have an identical temperature sensor and bias resistor as the main MAT sensor
• Same as EGO - if you have an identical EGO calibration as the main EGO sensor
• Same as MAF - if you have an identical Mass Air Flow sensor as the main MAF sensor calibration
• GM calibration - if you have a GM temperature sensor and standard (2490 ohm) bias resistor
• Production calibration and beta calibration - Used for MS3Pro internal temperature. A few early units use
the “beta” setting; all others should use “production”.
AMP EFI MS3Pro manual version 1.202, firmware 1.5.0, 4/21/2017 Page 233
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