Editing Z31/SENSORS/fuelinjector php (section)

=== Injector Differences ===

'''NA injectors:'''~180cc/min'''Turbo injectors:'''~260cc/min

'''Top Feed injectors:'''have only one connection to the fuel Rail and it is on the top of the injector'''Side(Dual)Feed injectors:'''have two connections to the fuel Rail one of them is on the top of the injector and the other is on the lower body. See the image above

'''High impedance ECU with low impedance injectors:''' You must install six 6–10Ω 10W
[[Z31/droppingresistors|dropping resistors]]
to avoid damaging the injector drivers. If you add dropping resistors, the fuel injectors must be
[[Z31/Rewirefuelinjectors php|rewired to factory spec]] (pre-service campaign).

'''Low impedance ECU driving high impedance injectors:''' This setup should operate normally.

Feed type does not matter to the ECU. What matters are impedance and flow rating. However, the lower intake manifolds differ; you may need to shave or shim the injector mounting area if swapping between types.