Injection Coding

[s130]

All injectors will deliver different amounts/volume of fuel for the same actuation period and fuel pressure. The injectors are calibrated/measured during manufacturing and given a code which basically defines the characteristics of each individual injector. This code is programmed into the ECU so the ECU can adjust the injector actuation periods so the same amounts of fuel adre delivered to each cylinder.

So if one injector delivers 5% more fuel than another then the ECU will reduce the pulse width to the injector by 5% to compensate.

Overall balanced injector fueling will benefit your car and pocket.