Secondary tables are a second set of fuel and ignition tables. The ECU can switch to these tables under certain conditions.
Secondary Table Switching
Input - the external switch input used to activate the secondary tables. Note that all conditions, as well as the input switch state, must be met in order for secondary tables to activate. If you do not want to use a switch input set this to 'Always Enabled'.
Input Invert - reverses the state of the activation input.
Conditions
All the conditions must be met in order for the secondary tables to be activated.
Engine speed - specifies the minimum and maximum rpm.
Engine load - specifies the minimum and maximum engine load.
Throttle - specifies the minimum throttle opening. Note that a value of 0% will disable the TPS test (as the TPS range might go negative).
Nitrous - only activates the secondary tables when the check nitrous is active
Example Configurations
Dual Tables - using the power steering input as the activation input, the secondary tables can be switched on the fly for high/low octane tables etc. Note the conditions are as broad as possible so that the tables will activate based on the switch.
MAP / TPS switching for ITBs - by tuning the primary tables using TPS and the secondary tables using MAP, it is possible use the TPS based tables at low load, and switch to the MAP based tables at high load. Note that no input switch is used by setting the input to 'Always On'.
Nitrous Fuel - the secondary table fuel and ignition settings are be used when nitrous is active. The nitrous conditions determine when to switch nitrous on, so the secondary tables conditions should be made as broad as possible.