Coding a fuel injector is a crucial step in injector repairs because it perfectly balances the hydraulic parameters of both the electromagnetic and, in the case of the Piezo Bosch, the piezoelectric injector.
Is it necessary to code injectors?
An essential link between the actual injector firing events and the digital Electronic Control Unit (ECU) of the vehicles engine is provided by the coding of an injector, which is a crucial component of testing and repairing injectors.
Do all injectors need coding?
To sum up, coding a fuel injector is a step that must be taken when repairing an injector.
Will fuel injectors throw a code?
Depending on the make of the car, a bad fuel injector can indeed cause a code to be set. If the injector is faulty, it may result in a misfire and a code to be set.
If youre lucky, you could switch it out with an injector with a similar specs (-0.1 or 0.1), and you may not need to code them. They need to be coded so the ECU knows the flow rate at what voltage of the injector.