Mercury MerCruiser MIE 454 Mag MPI Horizon - Fuel System

5
C
MULTI-PORT FUEL INJECTION DISASSEMBLY AND REASSEMBLY
SERVICE MANUAL NUMBER 23
90-861326--1 MARCH 1999 Page 5C-1
FUEL SYSTEM
Section 5C - Multi-Port Fuel Injection Disassembly And Reassembly
Table of Contents
Precautions 5C-2. . . . . . . . . . . . . . . . . . . . . . . .
Exploded Views 5C-3. . . . . . . . . . . . . . . . . . . . .
454/502 Mag MPI and 8.2L MPI Flame
Arrestor and Throttle Body 5C-3. . . . . . . .
454/502 Mag MPI and 8.2L MPI
Plenum 5C-4. . . . . . . . . . . . . . . . . . . . . . . .
454/502 Mag MPI and 8.2L MPI
Intake Manifold and Fuel Rail 5C-6. . . . .
Fuel Pressure Relief Procedure 5C-8. . . . . . .
454 / 502 Mag MPI Multi-Port
Components 5C-8. . . . . . . . . . . . . . . . . . . . . . .
Flame Arrestor 5C-8. . . . . . . . . . . . . . . . . . .
Throttle Body 5C-9. . . . . . . . . . . . . . . . . . . .
Plenum 5C-13. . . . . . . . . . . . . . . . . . . . . . . . . .
454 / 502 Mag MPI and 8.2L MPI
Fuel Rail and Injectors 5C-16. . . . . . . . . . .
Fuel Pressure Damper 5C-19. . . . . . . . . . . .
454 / 502 Mag MPI and 8.2L MPI
Fuel Injectors 5C-20. . . . . . . . . . . . . . . . . . .
454 / 502 MPI and 8.2L MPI - Sensor and
Module Servicing 5C-22. . . . . . . . . . . . . . . . . . .
Precautions 5C-22. . . . . . . . . . . . . . . . . . . . . .
Electronic Control Module (ECM) 5C-22. . .
Knock Sensor (KS) Module 5C-24. . . . . . . .
Engine Coolant Temperature (ECT)
Sensor 5C-26. . . . . . . . . . . . . . . . . . . . . . . . .
Manifold Absolute Pressure (MAP)
Sensor 5C-27. . . . . . . . . . . . . . . . . . . . . . . . .
Throttle Position (TP) Sensor 5C-28. . . . . . .
Intake Air Temperature (IAT) Sensor 5C-29
Idle Air Control (IAC) Valve 5C-30. . . . . . . .
Knock Sensor (KS) 5C-32. . . . . . . . . . . . . . .
Fuel Pump Relay 5C-33. . . . . . . . . . . . . . . . .
Electrical Box Exploded View 5C-34. . . . . .
Vacuum Line Routing 5C-35. . . . . . . . . . . . . . . .
454 / 502 MPI and 8.2L MPI Models 5C-35
Exploded View 5C-36. . . . . . . . . . . . . . . . . . . . . .
7.4L MPI Intake Manifold, Plenum
and Fuel Rail 5C-36. . . . . . . . . . . . . . . . . . .
7.4L MPI Throttle Body and Adapter
Components 5C-38. . . . . . . . . . . . . . . . . . . .
Fuel Pressure Relief Procedure 5C-39. . . . . . .
7.4L MPI Components 5C-39. . . . . . . . . . . . . . .
Flame Arrestor 5C-39. . . . . . . . . . . . . . . . . . .
Throttle Body 5C-40. . . . . . . . . . . . . . . . . . . .
Plenum 5C-41. . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Rail and Fuel Injectors 5C-44. . . . . . . .
Map Sensor 5C-47. . . . . . . . . . . . . . . . . . . . . .
Throttle Position Sensor 5C-48. . . . . . . . . . .
Intake Air Temperature (IAT) Sensor 5C-49
Idle Air Control (IAC) Valve 5C-50. . . . . . . .
Knock Sensor 5C-52. . . . . . . . . . . . . . . . . . . .
Knock Sensor Module 5C-53. . . . . . . . . . . . .
Fuel Pump Relay 5C-54. . . . . . . . . . . . . . . . .
Electronic Control Module (ECM) 5C-54. . .
Engine Coolant Temperature (ECT)
Sensor 5C-55. . . . . . . . . . . . . . . . . . . . . . . . .
Vacuum Line Routing 5C-56. . . . . . . . . . . . . . . .
7.4L MPI Models 5C-56. . . . . . . . . . . . . . . . .
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