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Engine Control System Tests W/O Codes
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Engine Control System Tests W/O Codes
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Introduction
Symptoms
Symptom Diagnosis
Does Not Start
Engine Does Not Crank
No Initial Combustion
No Complete Combustion
Difficult To Start
Difficult To Start, Cranks Normal
Difficult To Start When Cold
Difficult To Start When Hot
Poor Idling
High Idle Speed
Low Idle Speed
Rough Idle
Surging
Poor DRIVEABILITY
Hesitation/Poor Acceleration
Surging
Engine Stalls
Engine Stalls After Start
Engine Stalls During A/C Operation
INTERMITTENTS
Intermittent Problem Diagnosis
Test Procedures
Intermittent Simulation
Vibration Method
Wiring Harness Testing
Component, Relay & Sensor Testing
Electrical Connector Testing
Heating Method
Component Testing
Water Sprinkling Method