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3-100 FUEL SYSTEM (DFI)
Oxygen Sensor - Incorrect Output Voltage (Service Code 94, Equipped Models)
Oxygen Sensor Removal/Installation
•
Refer to the Oxygen Sensor Removal/Installation in the
Electrical System chapter.
Oxygen Sensor Inspection
•
Warm up the engine thoroughly until the radiator fan
starts.
•
Turn the ignition switch OFF.
•
Open the clamp [A], and pull out the oxygen sensor lead
connector [B].
•
Disconnect the oxygen sensor lead connector (4 pins
connector) and connect the harness adapter [A] between
these connectors.
[B] Main Harness
[C] Oxygen Sensor
Special Tool - Measuring Adapter: 57001-1700
•
Connect a digital meter [D] to the harness adapter leads.
Oxygen Sensor Output Voltage
Connections to Adapter:
Digital Meter (+) R (sensor BL) lead
Digital Meter () BK (sensor W) lead
•
Remove:
Air Cleaner Housing (see Air Cleaner Housing Removal)
•
Disconnect the stick coil connectors [A].
•
Turn over the rubber plate [B].
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