A gasoline direct-injection injector sprays into the combustion chamber. Its electrical operation, sealing, flow and spray pattern all affect how the engine runs. Poor cold starting, rough idle and misfires can involve injectors, but can also have ignition, fuel-supply or mechanical causes.
We use ASNU equipment for supported petrol injectors, including port and GDI types. Our setup has additional in-house control equipment for more complex injectors. We have used ASNU systems since 2010.
Testing includes external inspection, cleaning, resistance and inductance checks, leak testing, spray-pattern assessment and dynamic flow comparison. An injector can pass an electrical check and still leak, or seal correctly while delivering an uneven spray.
ASNU describes its GDI adapter as supplying the current and voltage needed to drive supported injectors. The Classic GDI system compares injectors at a lower, safer test pressure. Passing at bench conditions does not establish correct operation at the higher pressures, temperatures and loads encountered in the vehicle. Cleaning cannot renew damaged internals.
Common applications include VAG FSI/TSI/TFSI, BMW direct injection, Ford EcoBoost, Mercedes petrol direct injection, Vauxhall turbo petrol, Prince-family Peugeot/Citroen/DS/MINI and Hyundai/Kia GDi engines. Compatibility depends on the injector itself: send its make and part number before removal or delivery.
Supported common-rail diesel injectors use our separate Delphi bench. VW PD unit injectors are not supported for bench testing.
Start with an on-vehicle diagnosis. Our free initial scan and assessment provides a starting point; further testing, removal, refitting and repairs are separate work agreed with you.
