Revision as of 09:32, 27 January 2026

The Fuel menu is used to configure all aspects of Fuel, including Long Term Fuel Trim and Short Term Fuel Trim, as well as Lambda Correction.

VE Table

This is the main fuel table. The fuel table consists of a vertical load axis and the horizontal RPM axis. The cells represent Volumetric Efficiency regardless of the fuel strategy.

Override VE table load axis

Override the Y axis (load) value used for the VE table. Advanced users only: If you aren't sure you need this, you probably don't need this.

Fuel strategy

See Fuel strategy.

MAF adjustment table

TODO

MAF airmass blend

TODO

Injector setup

This menu enables the configuration of the injectors.

Injection configuration

This menu enables the configuration of the physical injectors installed on the engine and the injector layout.

Injection

Injection Enabled

If you need to disable fuel injection altogether, use this master switch.

Disable Fuel Pump

If you need to disable the fuel pump for diagnostics or some other reason, use this master switch.

Disable injector prime pulse

The injector prime pulse opens the injectors while the fuel pump is priming, to purge the air and build fuel pressure.

Mode

This configures the injection model:

Simultaneous - All injectors are opened at the same time, with the fuel load being divided over the whole 720 degree cycle (a 4 cylinder engine will squirt 4 times over 720 degrees).
Sequential - All injectors are opened at their commanded angle and the cycle is tracked over 720 degrees. Requires Cam Sensor or phase guessing to function properly.
Batch - Injectors are opened at their commanded angle along with their wasted pair. The same principle as wasted spark.
Single Point - The same as simultaneous but with a single channel, with fuel calculations to suit.

Injectors are always wired to their respective cylinders and epicEFI handles the firing order and injector opening. Batch wiring is only needed when the ECU does not have enough outputs to wire single injectors to a single channel.

Override VE table load axis

Override the Y axis (load) value used for the VE table. Advanced users only: If you aren't sure you need this, you probably don't need this.

Override AFR table load axis

Override the Y axis (load) value used for the AFR table. Advanced users only: If you aren't sure you need this, you probably don't need this.

Injection phase control mode

This dictates when the fuel will be injected in regards to the intake valve opening event.

@@ Line 40: / Line 40: @@
 * '''Batch''' - Injectors are opened at their commanded angle along with their wasted pair. The same principle as wasted spark.
 * '''Single Point''' - The same as simultaneous but with a single channel, with fuel calculations to suit.
+{{Warning|Injectors are always wired to their respective cylinders and epicEFI handles the firing order and injector opening. Batch wiring is only needed when the ECU does not have enough outputs to wire single injectors to a single channel.}}
 ==== Override VE table load axis ====