Actron KAL2535 - Manual (Page 12)

Preparation:
1. Relieve fuel system pressure.
2. Clean any dirt off the top of the fuel distributor.
3. Refer to
Figure 3 , Typical C.I.S. Fuel Injection
System Test Gauge Connections. Hook up the Test
Gauge between the fuel distributor and the control
pressure regulator. The Test Hose without the flow
control valve should be connected to the fuel
distributor. The hose with the valve should be
connected to the hose that was removed from the
fuel distributor, or connected directly to the control
pressure regulator.
The following C.I.S. tests can be made with this Test Kit:
n Cold Control Pressure – engine cold, test valve open
n Warm Control Pressure – engine warm, test valve open
n System Pressure – engine cold or warm, test valve closed
n Rest Pressure – engine warm, test valve open
n Fuel Delivery Rate
CAUTION: Adapters with o-rings should be handtightened only.
In some cases, to get the right combination of threads, multiple test adapters may have to be used.
For C.I.S. test pressures specifications, consult the vehicle service manual.
ADDITIONAL INSTRUCTIONS FOR TESTING BOSCH C.I.S. SYSTEMS
11
To Test Cold Control Pressure:
1. The engine should be cold after standing several
hours or overnight.
2. Disconnect electrical connector at warm-up
regulator and auxiliary air valve.
3. Connect Test Gauge and open valve on Test Hose.
4. Remove the air from the system. Put the Test Gauge
bleed-off tube in a disposal container. Activate the fuel
pump, but do not start the engine. With the fuel pump
operating, bleed until air is removed from system.
5. Start the engine and note pressure reading
immediately after starting. Compare to manufacturer’s
specifications.
6. If the Cold Control Pressure is not correct, the warm-
up regulator may be at fault.