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Isuzu
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1994
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Amigo S, 4WD
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Engine Controls - System/Component Tests - EFI
Engine Controls - System/Component Tests - EFI
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Introduction
Computerized Engine Controls
Control Unit
Ground Circuits
Power Circuits (Constant Voltage)
Power Circuits (Ignition Voltage)
Engine Sensors & Switches
A/C Switch
Airflow Sensor
Coolant Temperature Sensor
Crankshaft Position Sensor
Park/Neutral Switch
Throttle Valve Switch
Vehicle Speed Sensor (VSS)
Modules, Motors, Relays & Solenoids
Notes
Modules
Electronic Spark Control Module
Motors
IAC Motor
Relays
A/C Compressor Relay
ECM Relay
Main Relay
Restart Relay
Starter Relay
Solenoids
Air Regulator Solenoid
Fuel System
Fuel Delivery
Notes
Pressure Regulator
Pressure Regulator Vacuum Switching Valve (VSV)
Fuel Pump Relay
Fuel Control
Notes
Fuel-Cut (Slow-Cut) System
Fuel Injectors
Fuel Injector Balance Test
Idle Control System
A/C Switch
Air Regulator Solenoid
Exhaust Gas RECIRCULATION (EGR)
Backpressure Transducer (BPT)
Duty Solenoid
EGR System
EGR System (California)
EGR Vacuum Switching Valve (VSV) (CALIFORNIA)
EGR Valve
Thermal Vacuum Valve (TVV) (Federal)
Evaporative Emission System (EVAP)
Notes
Canister Purge Vacuum Switching Valve (VSV)
Canister Purge Control Valve
Positive Crankcase Ventilation (PCV)
PCV Valve
Miscellaneous Controls
Notes
Starter Relays
Starter Relay