5
A
DESCRIPTION
SERVICE MANUAL NUMBER 22
90-860074--1 FEBRUARY 2002 Page 5A-1
FUEL SYSTEM
Section 5A - Description
Table of Contents
Introduction 5A-3. . . . . . . . . . . . . . . . . . . . . . . . . . .
Precautions 5A-4. . . . . . . . . . . . . . . . . . . . . . . . . .
Testing Procedure 5A-5. . . . . . . . . . . . . . . . . .
General Information 5A-6. . . . . . . . . . . . . . . . . . .
Basic Knowledge and Tools Required 5A-6.
Visual/Physical Inspection 5A-6. . . . . . . . . . .
Electrostatic Discharge Damage 5A-6. . . . . .
Diagnostic Information 5A-7. . . . . . . . . . . . . .
Terminology 5A-7. . . . . . . . . . . . . . . . . . . . . . . .
Electronic Control Module (ECM)
and Sensors 5A-9. . . . . . . . . . . . . . . . . . . . . . . . .
General Description 5A-9. . . . . . . . . . . . . . . . .
Computers and Voltage Signals 5A-9. . . . . .
Analog Signals 5A-9. . . . . . . . . . . . . . . . . . . . .
Analog Value Conditioning 5A-11. . . . . . . . . .
Digital Signals 5A-13. . . . . . . . . . . . . . . . . . . . .
Engine Control Module (ECM) 5A-15. . . . . . .
Speed Density System 5A-17. . . . . . . . . . . . .
ECM Input and Sensor Descriptions 5A-18. .
Fuel Management 5A-26. . . . . . . . . . . . . . . . . . . .
Control 5A-26. . . . . . . . . . . . . . . . . . . . . . . . . . .
Modes Of Operation 5A-27. . . . . . . . . . . . . . .
Diagnosis and Testing 5A-30. . . . . . . . . . . . . . . .
ECM Reactions During Operation 5A-30. . . .
ECM Self-Diagnostics 5A-30. . . . . . . . . . . . . .
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