OMEM710 Hardware Manual 2v11
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13.1 Coolant Temperature
When the engine is cold, it requires an extra amount of fuel. This extra fuel is added as a
percentage set in the Coolant Fuel Trim table of percentage increase against engine coolant
temperature.
Ignition can be trimmed based upon coolant temperature. This is only used for extremes of
temperature. This is described by the Coolant Ignition Trim table.
13.2 Air Temperature
If you wish to change the fuelling with air inlet temperature, then the Air Temp Fuel Trim table
allows the user to make a percentage change in fuel based on AIT.
Ignition can be trimmed based upon air inlet temperature. This is only used for extremes of
temperature. This is described by the Air Temp Ign Trim table.
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