Innova CanOBD2&1 Owner's Manual page 91

ADDITIONAL TESTS FOR EEC-IV SYSTEMS - CYLINDER BALANCE TEST
and at every engine revolution. On other systems the injectors fire in
groups and/or at every other engine revolution. What distinguishes
Sequential Electronic Fuel Injection systems from other multi-port fuel
injection systems is that each injector is independently energized and
fires sequentially one after the other in the proper firing order. This gives
the vehicle's computer more control to cut the fuel to one injector at a
time (this can't be accomplished on the other systems because they fire
in groups of two ore more injectors).
Cylinder Balance Test Procedure
Check your vehicle thoroughly before performing any test. See
BEFORE YOU BEGIN on page 18 for details.
ALWAYS observe safety precautions whenever working on a
vehicle. Read and follow Safety Precautions on page 3 before
performing this test.
1. Locate the vehicle's Data Link Connector (DLC). See Data Link
Connector (DLC) on page 77 for connector location.
Some DLCs have a plastic cover that must be removed before
connecting the CanOBD2&1 Scan Tool cable connector.
2. Connect the CanOBD2&1 Scan Tool
cable (with the Ford Connector Cable
Adaptor attached) to the CanOBD2&1
Scan Tool, then connect the adaptor to
the vehicle's
POWER/LINK
CanOBD2&1 Scan Tool ON, then press
the ENTER/LD
The Ford EEC-IV System menu displays.
Use the
selections.
3. From the Ford EEC-IV System menu,
highlight Cylinder Balance Test, then
press the ENTER/LD
An "application" advisory message
shows on the CanOBD2&1 Scan
Tool's display.
If your vehicle IS equipped with the
Sequential Fuel Injection, press the
ENTER/LD
If your vehicle IS NOT equipped with Sequential Fuel Injection,
select Back, then press the ENTER/LD
Cylinder Balance Test.
4. When prompted by the CanOBD2&1 Scan Tool, start and warm-up
engine to normal operating temperature. Press the ENTER/LD
button to continue.
CanOBD2&1
Ford OBD1 Systems
DLC. Press
button to turn the
button to continue.
and buttons, as necessary, to make menu
button.
button to continue.
the
button to exit the
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