Injecting Flow Test; Auto. Test - Launch CNC-603A User Manual

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3） The system will stop automatically after completion of the test.

5.3 Injecting Flow Test

Injecting flow test is to detect the amount of fuel injected normally by injectors for 15 seconds and then determine
if it is consistent with the injection quantity of standard injectors (or within its error range), referring to the
relevant technical manual of the injector). The change or deviation of the change reflects the change (wear) in the
orifice diameter or blockage of the injector, eliminating interference due to changes in electrical parameters of the
injectors.
Method and Steps (See 5.1 Uniformity / Sprayability Test for Installation Method)
1） Before the test, if there is test solution in the transparent tube, press [Drain] button to drain the solution out of
the transparent tube.
2） Select [Injecting flow test] on the main interface and press [Run] button. The system will start to work. At
this time, the pressure can be adjusted via [Pressurization] and [Depressurization] buttons, as shown in
Figure 5.7.
3） The system will stop automatically after completion of test.

5.4 Auto. Test

Auto. test includes the afore-mentioned tests (injecting flow test (15 seconds of normal injection, idle speed,
medium speed, high speed, acceleration and deceleration change and pulse width change test). The function can
simulate various working conditions of the engine more precisely and comprehensively, and can detect various
performance parameters of the injector.
Method and Steps (See 5.1 Uniformity / Sprayability Test for Installation Method)
1） Before the test, if there is test solution in the transparent tube, press [Drain] button to drain the solution out of
the transparent tube.
2） As illustrated in the following figure: Select [Auto. Test] on the main interface and then select a cleaning and
testing mode in the [Cylinder No./Mode] parameter selection menu, referring to the performance parameter
table of the injectors on the vehicle (setting is shown in Figure 5.8). The default mode is mode 1 (See "Flow
Chart of Auto. Test" for details on modes). Press [Run] to start the test, as shown in Figure 5.9. Mode 2 is
shown in Figure 5.10.
CNC-603A Injector Cleaner & Tester User Manual
Figure 5.6
Figure 5.7
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