OMEM710 Hardware Manual 2v11
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5.1 Throttle Position Sensor
The parameter TPS raw gives the raw number output of the sensor which is scaled by options TPS
min and TPS max to give a throttle that works between 0 and 100%. To calibrate;
A live reading is shown for TPS raw. TPS raw will be between 0 and 255. The throttle position
sensor can often be rotated by the user. If so, the position should be set so that the sensor
never reaches 0 or 255 during its closed throttle to open throttle movement. It is preferable to
have the sensor set so that the values do not go close to either extreme. Typically a value of
approximately 20 at the idle position will give an acceptable value at WOT (wide open throttle).
The number for TPS raw at WOT needs to have 1 added to it, then be inputted to the options
box as TPS max (i.e. if TPS Raw is 220, then input 221). The number for TPS raw at the idle
position needs inputting to the options box as TPS min.
The Autozero options allow the ECU to automatically re-learn the idle position of the throttle sensor
every time the ECU is turned on. 0 disables this feature.
5.2 MAP Sensor
If you are using MAP for engine load sensing then set MAP for Load ON.
MAP min and MAP max should be 0 and 255. Do not change these unless instructed to by Omex.
MAP Cal is the the time over which the ECU averages the MAP sensor input. Measured in internal
units. Typically 12.
As standard, the fuel map and ignition map will show load values of 0-100KPa. This is not KPa, this
is simply 0-100% of the range of the sensor. It is possible to tell the ECU what range the sensor has
so that you can read the true KPa value on the maps.
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