Description
Overview
The GS4/20 is a Carbon Zapp gasoline test bench for testing and servicing gasoline fuel injectors. The bench holds up to 4 injectors at a time and operates at an electronically controlled system pressure of up to 10 bar. Injection volume is measured in graduated illuminated tubes, the spray pattern is inspected visually in a separate chamber. The unit is used in workshops for diagnosis, cleaning and functional testing of GDi, MPFi and EFi injectors.
Testing & Measuring Functions
- iVM: injection volume metering via graduated illuminated tubes, resolution 1 ml, accuracy ±1 ml/130 ml, automatic drainage after each test run
- iSPC: illuminated chamber for visual inspection of the spray pattern
- iRF: injector reverse flush to remove residues after ultrasonic cleaning
- eRSO: electrical resistance, short circuit and open circuit test
- Dynamic and static iVM measurement
- Injector leak test
- Fully automatic test sequence
- Multilingual user interface
Technical Data
- Test slots: 4 injectors
- Volumetric tubes: 4
- System pressure: max. 10 bar, electronically controlled
- Pressure source: electric pump
- Tank capacity: 4 l
- Power supply: 100–250 V AC, single-phase, 50/60 Hz
- Operator unit: LCD display
- Integrated spray chamber and ultrasonic bath
- Dimensions (W × D × H): 500 × 440 × 680 mm
- Weight: 39 kg
Systems Tested
- Solenoid Direct Injectors (GDi, FSI)
- Multi-Port Fuel Injectors (MPFi / SPFi)
- Central-Port Fuel Injectors (CSFI / CPFI)
- Throttle Body Injectors (TBI / CFI)
- Continuous Injection Injectors (K-Jetronic)
- Marine Application Injectors (E-TEC / FICHT)
- Motorcycle Application Injectors
- LPG and alternative fuel injectors
- Racing Application Injectors (optional upgrade)
Applications
- Passenger cars including HEV and PHEV
- Motorcycles
- Racing applications (gasoline)
- Marine applications (optional equipment required)
Delivery Configuration
- Adapter kit: EXCL-ADAPT KIT
- Ultrasonic bath UB-15s
- Set of volumetric tubes
- Automatic operation with iVM and iRF function
Requirements
- Calibration fluid is not included in the scope of delivery
- Racing injectors require an optional upgrade
- Marine applications require additional equipment
- High-pressure GDi injectors above 10 bar require separate GDi test units
Article Number
CZ-008347







