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1981
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CJ5 Base, 2.5L Eng VIN B
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Controlled Catalytic Converter (C-4) System
Controlled Catalytic Converter (C-4) System
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Description
Operation
Oxygen Sensor
Electronic Control Module (ECM)
Carburetor
Catalytic Converter
Engine Sensors & Switches
Coolant Temperature Sensor (CTS)
Wide Open Throttle (WOT)
Closed Throttle Switch
Component Replacement
Oxygen Sensor
Notes
Removal
Installation
Vacuum Switches
Removal & Installation
Electronic Control Module
Removal & Installation
Programmable Read Only Memory (Prom)
Removal
Installation
Testing & Diagnosis
C-4 Diagnostics
Warning Light Check
Trouble Codes
System Performance Check
Notes
Connecting Dwell Meter
Diagnostic Procedures