Innova CanOBD2&1 Owner's Manual page 96

Ford OBD1 Systems
ADDITIONAL TESTS FOR EEC-IV SYSTEMS - WIGGLE TEST
Wiggle Test
Since any DTC's from Wiggle Test results are saved in
Continuous Memory, it is suggested that you clear any DTC's
in Continuous Memory before performing Wiggle Test (see
ERASING DTCs (OBD I SYSTEMS) on page 112 for proce-
dures). This way you start with a clean slate, and any faults
detected during the procedure will be related to that particular
circuit tested.
Use this test to check for intermittent faults in some circuits.
Circuits Tested:
1984 & Newer - Air Charge Temp Sensor (ACT), Barometer Pressure
Sensor (BP), Engine Coolant Temp Sensor (ECT), Exhaust Gas
Oxygen Sensor (EGO), EGR Valve Posit
1985 & Newer - Vane Air Flow Sensor (VAF)
1986 & Newer - Pressure Feedback EGR Sensor (PFE)
1990 & Newer - Exhaust Gas Oxygen Sensor (EGO), Ignition
Diagnostic Monitor (IDM) (DIS or Dual Plug DIS only), Idle Tracking
Switch (ITS), Mass Air Flow Sensor (MAF)
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 DLC. Press the POWER/LINK
button to turn the 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 Wiggle Test, then press the
ENTER/LD
4. When prompted by the CanOBD2&1
Scan Tool, start and warm-up engine to
normal operating temperature. Press
the ENTER/LD
5. Turn ignition key OFF and wait for the on-screen prompt. If you wish
to exit the KOEO test at this time, press the ENTER/LD
94
button to continue.
and buttons, as necessary, to make menu
button.
button to continue.
button.
CanOBD2&1