The Injection driver (under Injection on the entity tree) is the configuration of the fuelling equations of the ECU. Note the ME100 does not have this settings as it is ignition only.


Fuelling Mode

This determines how the injectors (which are typically wired individually per cylinder to injector channels on the ECU - Injector 1 to Cylinder 1s Injector etc) are fired.


Off
This turns off all fuelling events, as used when timing the engine to stop the spark plugs becoming soaked, or for clearing the engine in the case of flooding.


Batch

This will fire all injector channels together, once per cycle.


Grouped

This will fire all will fire injectors paired, once per cycle - this will be determined by the firing order. For example if the firing order is 1-3-4-2 then Injector channels 1 &3 will fire together then 360 crank degress later, 4 & 2 will fire.


Fully Seq.

This will fire each injector in order as defined by the firing order to match each cylinders intake stroke. You can time this up by setting the injection angle table.


Flood Clear TPS

Use IAT in Algorithm

This option (when set to Yes) will use the Gas Laws to determine the mass of air entering the engine based on the Inlet Air Temperature. If it is set to NO, then you should tune your Environmental>Inj, IAT Trim table to supplement or reduce the fuel based on the air temperature to your liking.

Injection Angle

This determines when the injection events will happen. The injection angles are set based on speed/load in the Injection Angle table (under Injection on the entity tree). YOu can set whether these angles relate to the start or end of the injection pulse.

Inj. Max Duty

This is the maximum duty that the injectors should be driven. If the fuelling equation delivers an injection duty over this, then a hard cut limiter will happen, protecting the engine and the tuner will also be notified of this by a warning at the bottom of MEITE. Generally, injectors should not be driven over 90% duty - if they are required to do so to meet your target AFR then you need either larger injectors or more fuel pressure.

Pri. Inj Size (cc/min)

Enter the flow rate of your injectors here. This should be the documented flow rate and the documented pressure (which is entered in Inj Re. Pressure).

Fuel Pressure (Kpa)

Enter the expected/set fuel pressure of the fuel rail in Kpa. This is only used with the reference pressure to calculate true fuel flow.

Inj Ref. Pressure (Kpa)

Enter the pressure which delivered the Pri Inj Size flow rate. For example if the datasheet for your injectors says 350cc/min at 3.5Bar then you would enter 350cc into Pri Inj Size, and then 350 in this box. Then, if you in fact run 7bar of fuel pressure on your engine (you would of entered 700 in the above "Fuel Pressure" box, then the ECU knows that n reality, your injectors (in an ideal world) are flowing 700c/min.

Fuel Pump Prime Time

This the amount of seconds when the ECU first powers on that the chosen 'fuel pump' output will be "on" for.

Priming Pulse

This will fire the injectors for the length of time (relating to coolant temperature) in the Priming Pulse table (under Startup). You can select to either prime when the key first turns on, or when cranking begins, or of course, neither.

Staged Injection

See the staged injection section for more information on this.