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Engine Controls - System & Component Testing
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Engine Controls - System & Component Testing
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Introduction
Computerized Engine Controls
Notes
Cranking Hold Function Circuit
Notes
Circuit Description
Diagnosis & Repair (With Hand-Held Tester)
Diagnosis & Repair (With OBD II Scan Tool)
Engine Control Module
Power & Ground Circuits
ECM Back-Up Power Circuit (Battery)
Engine Control Module (ECM) Power Source Circuit (Ignition On)
Notes
Circuit Description
Diagnosis & Repair
Starter Signal Circuit
Sensors & Switches
Accelerator Pedal Position Sensor
Airflow Meter
Notes
Diagnosis & Repair
Camshaft Position Sensor
Crankshaft Position Sensor
Engine Coolant Temperature (ECT) Sensor
Heated Oxygen Sensor
Intake Air Temperature (IAT) Sensor
Knock Sensors
Park/Neutral Position Switch
Throttle Position Sensor
Vapor Pressure Sensor
Vehicle Speed Sensor
Motors & Relays
Circuit Opening Relay
EFI Main Relay
Fuel Pump Relay
Throttle Control Motor
Fuel Systems
Fuel System Pressure Release
Fuel Delivery
EFI Main Relay
Fuel Pump Pressure
Fuel Pump Resistance & Operation
Fuel Pump Resistor
Fuel Control
Fuel Injector Circuit
Fuel Injector Resistance
Fuel Injector Volume
Fuel Pump Control Circuit
Circuit Description
Diagnosis & Repair (With Hand-Held Tester)
Diagnosis & Repair (With OBD II Scan Tool)
Idle Control System
Notes
Throttle Body
Ignition System
Notes
Timing Control Systems
Knock Sensors
Emission Systems & Sub-Systems
Fuel Evaporation System
Notes
Air Inlet Line
Charcoal Canister
Fuel Cutoff Valve & Fill Check Valve
Fuel EVAP System Test
Fuel Tank & Filler Pipe Air Tightness
Vacuum Switching Valve For Charcoal Canister
Vacuum Switching Valve For EVAP
Vapor Pressure Sensor
Positive Crankcase Ventilation (PCV)
Miscellaneous Controls
Notes
Cooling Fan System
Transmission