MULTIPORT
On-Vehicle Inspection of
FUEL INJECTION Components
FUEL PUMP
to 1993 Models Non Turbo>
A Equipment side
connector
A Harness side
connector
Engine control
Ignition switch
Ignition switch (ST)
B Equipment side
connector
r e l a y
Fuel
B
6 7 ”
Equipment side
connector
C
8
module
F u e l
check
terminal harness
side connector
Engine control module connector
OPERATION
l
Drives the fuel pump during cranking and engine operation.
l
When the ignition switch is set to START, current flows from the ignition switch through the
relay coil to ground. This turns on the MFI relay switch and drive power is supplied from the battery
through the MFI relay switch to the fuel pump.
l
While the engine is running, the engine control module keeps the power transistor on and energizes
the MFI relay coil so that drive power is supplied to the fuel pump.
TSB
Revision
Summary of Contents for 1992 3000GT
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Page 104: ...13 2...
Page 118: ...13A 14 MULTIPORT FUEL INJECTION Special Tools TSB Revision...
Page 394: ...NOTES...
Page 460: ...NOTES...
Page 532: ...NOTES...
Page 536: ...21 4 CLUTCH Troubleshooting Excessive wear of clutch disc facin I LJ 1 TSB Revision...
Page 556: ...NOTES...
Page 570: ...22 14 MANUAL TRANSAXLE AWD Special Tools SPECIAL TOOLS Oil seal installer TSB Revision...
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Page 600: ...I I I LJ LJ I L...
Page 609: ...AUTOMATIC TRANSAXLE Troubleshooting 23 I 9 L L 1 TSB Revision...
Page 668: ...NOTES...
Page 692: ...NOTES...
Page 752: ...33 2 NOTES...
Page 766: ...NOTES...
Page 809: ...REAR SUSPENSION AWD Special Tools 34 23 B lMB990244 i TSB Revision...
Page 810: ...34 24 REAR SUSPENSION AWD Troubleshooting TROUBLESHOOTING TSB Revision...
Page 946: ...NOTES...
Page 958: ...NOTES...
Page 960: ...37 2...
Page 964: ...37A 4 STEERING Snecial Tools SPECIAL TOOLS Preload socket General service TSB Revision...
Page 994: ...NOTES...
Page 1006: ...NOTES...
Page 1068: ...42 62 BODY Sunroof SUNROOF SWITCH CONTINUITY CHECK 18FO403 TSB Revision...
Page 1070: ...NOTES I...
Page 1103: ...52 1 i INTERIOR CONTENTS INTERIOR 52A SUPPLEMENTAL RESTRAINT SYSTEM SRS 528 i...
Page 1104: ...52 2 NOTES...
Page 1220: ...NOTES dl...
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