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8 - 4 Master Specifi
cations
5.0/5.7/6.0/8.1L
MEFI 4 - PCM
MODEL
MP 5.0L
MP 5.7L
MP 6.0L
(Horsepower)
(275 HP)
(330 HP)
(375 HP)
MY ‘03 Only
Fuel Pressure
57-62 psi @ WOT
57-62 psi @ WOT
57-60 psi @ WOT
STD. FCC
MY ‘04 and newer
Fuel Pressure - FCC
57-62
psi
Returnless to Rail
(WOT)
Fuel Pressure - LPFP
4 - 7 psi
4 - 7 psi
4 - 7 psi
ALL ENGINES
(WOT) (WOT) (WOT)
PCM MASTER FUEL PRESSURE SPECIFICATIONS - 2005
IMPORTANT: FUEL PRESSURE MEASUREMENT MUST BE MADE WITH THE
ENGINE UNDER LOAD.
MODEL
MP 5.0L
MP 5.7L
MP 6.0L
(Horsepower)
(275 HP)
(330 HP)
(375 HP)
Coolant
220° F (104.8° C)
220° F (104.8° C)
220° F (104.8° C)
Over-Temperature
Water Temp Lamp
Water Temp Lamp
Water Temp Lamp
Sensor
Power Reduction
Power Reduction
Power Reduction
Transmission
235° F ± 10° F
235° F ± 10° F
235° F ± 10° F
Over-Temperature
Gen. Warning #1
Gen. Warning #1
Gen. Warning #1
Switch
Trans Temp Lamp
Trans Temp Lamp
Trans Temp Lamp
(Optional)
Power Reduction
Power Reduction
Power Reduction
Low Oil
< 10 psi
< 10 psi
< 10 psi
Pressure
Gen. Warning #2
Gen. Warning #2
Gen. Warning #2
Switch
Oil Pressure Lamp
Oil Pressure Lamp
Oil Pressure Lamp
Power Reduction
Power Reduction
Power Reduction
Exhaust
248° F ± 5° F
248° F ± 5° F
248° F ± 5° F
Over-Temperature
M.I.L. - DTC 81
M.I.L. - DTC 81
M.I.L. - DTC 81
Switch
Check Engine Lamp
Check Engine Lamp
Check Engine Lamp
(Optional)
PCM MASTER WARNING/ALARM SPECIFICATIONS - 2005
NOTE: ‘Power Reduction” mode limits engine RPM to 2000. Above 2000 RPM the ECM will disable half of the
fuel injectors. Reducing engine RPM below 1200 will restore normal engine operation until RPM exceeds 2000.
Depending upon Instrument Panel confi guration, individual warning lights, Check Engine/Check Gauges indica-
tor, and/or an audible alarm buzzer may light/sound when a malfunction occurs.
ENGINE SPEC
07/04
Summary of Contents for 5.0L
Page 1: ...MEFI 4 4B DIAGNOSTIC MANUAL 5 0 5 7 6 0 8 1L L510005P 11 05...
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Page 60: ...3A 20 Fuel Metering System 5 0 5 7L MEFI 4 PCM This page left intentionally blank...
Page 142: ...4B 20 Electronic Ignition 6 0 8 1L MEFI 4 PCM This Page Left Intentionally Blank...
Page 148: ...5 6 Diagnosis 5 0 5 7 6 0 8 1L MEFI 4 PCM 6 0L MPI...
Page 149: ...5 0 5 7 6 0 8 1L Diagnosis 5 7 MEFI 4 PCM 8 1L MPI...
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