5.0/5.7/6.0/8.1L
Diagnosis 5 - 9
MEFI 4 - PCM
WARNING BUZZER OUTPUT - Scan Tool Displays “ON”
or “OFF”
- Indicates the ECM commanded state of the
Buzzer. The buzzer may be commanded “ON” for various
conditions.
MAX ENGINE RPM LOGGED - Scan Tool Displays 0-
9999 RPM
- The ECM keeps a log of the maximum RPM
the engine has turned.
KNOCK TIME - Scan Tool Displays 0.0-9999.99 hours
-
The ECM keeps track of the total time that the ECM has
detected engine knock.
RUN TIME 0-1000 RPM - Scan Tool Displays 0.0-9999.9
hours
- The ECM keeps track of the total time that the
engine has ran between 0-1000 RPM.
RUN TIME 1001-2000 RPM - Scan Tool Displays
0.0-9999.9 hours
- The ECM keeps track of the total time
that the engine has ran between 1001-2000 RPM.
RUN TIME 2001-3000 RPM - Scan Tool Displays
0.0-9999.9 hours
- The ECM keeps track of the total time
that the engine has ran between 2001-3000 RPM.
RUN TIME 3001-4000 RPM - Scan Tool Displays
0.0-9999.9 hours
- The ECM keeps track of the total time
that the engine has ran between 3001-4000 RPM.
RUN TIME 4001-5000 RPM - Scan Tool Displays
0.0-9999.9 hours
- The ECM keeps track of the total time
that the engine has ran between 4001-5000 RPM.
RUN TIME OVER 5000 RPM - Scan Tool Displays
0.0-9999.9 hours
- The ECM keeps track of the total time
that the engine has ran over 5000 RPM.
FUEL FLOW RATE - Scan Tool Range 0-100 gph
-
This is the gallons per hour of fuel that the engine is
consuming.
ENGINE DISPLACEMENT - Scan Tool Range 5.0/5.7/
6.0/8.1 liter
- This is the displacement in liters of the
engine being looked at.
MANIFOLD AIR TEMPERATURE - Scan Tool Range -40°F
to 304°F
- The ECM converts the resistance of the intake
air temperature sensor to degrees. Intake Air Temperature
(IAT) is used by the ECM to adjust fuel delivery and spark
timing according to incoming air density. (5.0/5.7L Only).
INJECTOR BANK A PULSE WIDTH - Scan Tool Range
0-1000.00 msec.
- Indicates the amount of time the ECM is
commanding the injectors “ON” during each engine cycle.
A larger injector pulse width will cause more fuel to be
delivered. Inj. Pulse Width should increase with increased
engine load.
INJECTOR BANK B PULSE WIDTH - Scan Tool Range
0-1000.00 msec.
- Indicates the amount of time the ECM is
commanding the injectors “ON” during each engine cycle.
A larger injector pulse width will cause more fuel to be
delivered. Inj. Pulse Width should increase with increased
engine load.
RPM REDUCTION CONTROL - Scan Tool Displays “ON”
or “OFF”
- Indicates whether or not the ECM is functioning
in RPM Reduction mode. During this mode, the ECM only
triggers one injector driver, resulting in fuel to only half of
the cylinders.
DISABLE INJECTOR BANK - Scan Tool Displays “ON” or
“OFF”
- Indicates whether or not the ECM is disabling one
injector while in RPM Reduction mode.
MALFUNCTION INDICATOR LAMP OR MALFUNCTION
LAMP OUTPUT - Scan Tool Displays “ON” or “OFF”
- Indicates the ECM commanded state of the Malfunction
Indicator Lamp. Should display “ON” with the ignition “ON,”
engine “OFF.”
FUEL PUMP OUTPUT - Scan Tool Displays “ON” or “OFF”
- Indicates the ECM commanded state of the fuel pump
relay driver circuit.
GEN WARNING 1 INPUT - Scan Tool Displays “ON” or
“OFF”
- This is a discrete input to the ECM on J1-19 for the
transmission temperature switch. ON indicates the switch
is grounded (Transmission Temperature Switch >235°F
- optional).
GEN WARNING 1 LAMP OUTPUT - Scan Tool Displays
“ON” or “OFF”
- Indicates the ECM commanded state of
J1-22 (Transmission Temperature Lamp - optional).
GEN WARNING 2 INPUT - Scan Tool Displays “ON” or
“OFF”
- This is a discrete input to the ECM on J1-4 for the
oil pressure switch. ON indicates the oil pressure switch is
grounded (Low Oil Pressure Switch <10 psi).
GEN WARNING 2 LAMP OUTPUT - Scan Tool Displays
“ON” or “OFF”
- Indicates the ECM commanded state of
J1-23 (Low Oil Pressure Lamp).
CHECK GAUGES LAMP OUTPUT - Scan Tool Displays
“ON” or “OFF”
- Indicates the ECM commanded state of
the Check Gauges lamp. This lamp indicates an engine
over temp condition.
Содержание 5.0L
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