Identifying problems with GDI Injectors

Please watch this video in full. These injectors are being run through a drive cycle of different RPM and Milli Second durations. We call this Individual Dynamic Spray Examination (IDSE). In this video you can see in IDSE frame1, the injectors spraying and you can clearly see there is a difference in spray types and you can see that 2, 4, 5, 6, 7 & 8 show good strong sprays over the others - on the vehicle this would possibly register a misfire on the engine management system. As we increase the drive cycle of the injectors, you can start to see changes in the injectors' spray performance. In IDSE frame 4 you can clearly see the spray patterns changing and at (2.29.00) you can see No 5 that was a good one is now nearly gone. In IDSE frame 5 you can clearly see No3 has virtually no spray whatsoever (2.52.00) and No5 (2.59.00) is the same. The injectors are still operating and the technician will be pulling his hair out trying to identify the problem because he cannot see this while the injectors are on the engine. If these injectors were tested at high pressure, you would not be able to clearly and safely examine the injectors' performance like you can here on the ASNU Classic GDI. For more information please contact ASNU www.asnu.com