7.8 Advanced Engine 7 ADDITIONAL ITEMS: BEYOND BASIC FUEL AND IGNITION CONTROL
• No. EGT inputs - specify the number of channels you have connected
• Calibration - the calibration depends on the thermocouple amplifier in use. Consult the documentation that
came with it.
• Data Capture - here you specify the local or remote analogue channels that the EGT inputs are connected
to. For remote CAN inputs, see the CAN section for configuration.
The Actions section allows you to specify action if EGT gets too high.
• Warn temperature - above this temperature the code will take action. The warning output selected on the
AFR Safety system is turned on.
• Add fuel - specifies a raw pulsewidth in milliseconds of additional fuel. This could be used to help protect
the engine if EGT is too high.
• Add to - Normally this is set to "Both". When using staged fuel outputs or dual table, you may want to specify
a particular channel.
• Shutdown engine - if you want, the engine to be shutdown if EGT is too high.
• Time > warn temp - if any of the EGT stays above the warn temperature for more that this time, the engine
is shutdown.
• Max temperature - if any of the EGTs exceeds this temperature, then the engine is shutdown immediately.
See the AFR Safety system for shutdown and resume settings.
The temperatures, pulsewidth and time presented are purely examples. It is very important that you review
your datalogs and think carefully before specifying these settings. With correct settings, EGT overtemp is likely
to detect a failing injector causing a lean mixture on one cylinder or an overall problem such as a faulty pump or
regulator causing everything to run lean.
7.8.4 Generic sensor inputs
The Generic Sensors allows optional analogue inputs to be connected and easily recorded in datalogs or used as
parameters in the Output Ports. The analogue inputs are in the 0-5V range and are internally converted with a
10bit ADC (Analogue to Digital Convertor), giving 1024 steps. Typical uses include:
• Pre- and post- intercooler pressure and temperature
• Fuel pressure
AMP EFI MS3Pro manual version 1.202, firmware 1.5.0, 4/21/2017 Page 232
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