Does Citroen c4l need to match the replacement nozzle?

No need. Nozzle replacement only needs to pay attention to disassembly details, without matching. You can buy a genuine nozzle to replace it.

Throttle controls throttle, throttle only controls air intake, and ECU decides fuel injection. The nozzle looks like this, and there are two lines on it. The solenoid valve controls the opening and closing of the fuel injector, and the fuel injection quantity is controlled by the computer according to the intake air quantity, thus changing the fuel injection quantity. We adjust the fuel injection quantity by computer, that is, change the fuel injection pulse width. When you change the fuel nozzle without authorization,