9000 L4-1985cc 2.0L DOHC Turbo EFI (1987)
5 Observe the pressure gauge and increase the pressure by restarting the fuel pump. Set the switch to ON.
Set the switch to OFF and note the reading on the pressure gauge, e.g. 2.2 bar (32 psi). Press the button on the test box to activate injector No.1 for
0.5 seconds. When the injector opens, the pressure will drop and the pressure gauge will show a new fixed reading, e.g. 0.7 bar (10 psi), which
should be noted.
Deduct the last reading from the first one, i.e. 2.2 - 0.7 = 1.5 bar (32 - 10 = 22 psi), and note the difference (pressure drop) for injector No.1.
6 Then plug the test box's connector into injectors 2, 3 and 4 one by one and repeat the procedure described in point 1 for each injector. The
pressure drop should be the same for all injectors, the maximum permissible difference between them being 0.2 bar (3 psi). If the pressure drop for
one or more of the injectors differs by more than this, points 1-13 must be repeated once again.
If variations in pressure drop are excessive after this, the injector or injectors displaying too great a difference should be changed.
7 Release the pressure in the container by pulling the safety valve's ring and then drain the line by pressing the pushbutton valve on the container.
8 Hold a cloth round the adapter fitting and remove the adapter.
Connect the fuel line.
9 Remove the test box connections from injector and battery. Plug all the connectors into the injectors.
10 Fit fuses 22 and 14 back in place.
11 Start the engine and check the fuel system for leaks.
