Cylinder Power Balance - Zurich ZR15 Owner's Manual

A fuel pressure gauge (purchased separately) is required to
perform this function.
1. Select Fuel Injector Balance in the ECM Special Functions menu,
then press ENTER
An "instructional" screen displays. Prepare the vehicle for test as
n
directed:
Choose Next as necessary to scroll the "instructional"
screen.
- Ensure all fuel lines are connected.
- Connect the fuel pressure gauge to the fuel line.
The Select Injector screen displays.
n
2. Select the injector you wish to test, then press ENTER
The
n
displays.
3. Note and record the fuel pressure
reading for the selected injector, then
choose Pulse Injector to pulse the
injector.
The Injector Pressure Drop screen
n
displays.
4. Note and record the fuel pressure drop
for the selected injector, then choose
Continue to return to the Select Injector
screen.
Repeat steps 2 through 4 for
n
additional injectors, as desired.
5. Choose Exit to return to the ECM
Special Functions menu.

Cylinder Power Balance

The Cylinder Power Balance function lets you disable a selected fuel
injector to note the resulting power drop.
1. Select Cylinder Power Balance in the ECM Special Functions menu,
then press ENTER
An "instructional" screen displays. Prepare the vehicle for test as
n
directed:
- Set the parking brake.
- Block all drive wheels.
- Start and idle the engine.
- Make sure the A/C system is off.
For technical questions, please call 1-888-866-5797.
.
Injector Pressure
.
Additional Tests
SYSTEM/ACTUATOR TESTS
screen
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