SERVICE MANUAL NUMBER 23
FUEL INJECTION SYSTEM TROUBLESHOOTING
Scan Tool Normal Specifications (Idle / Warm Engine / Closed Throttle /
Neutral)
SCAN POSITION
UNITS DISPLAYED
TYPICAL DATA VALUE
600-700 rpm
rpm
rpm
rpm
Desired rpm
600 rpm
Coolant Temp.
° F(° C)
° F (° C)
150-170° F (66-77° C)
Varies with Ambient Tempera-
ture
Manifold Air Temp.
Throttle Position
Throttle Angle
Volts
.4 to .8 Volts
0-1%
0-100 %
1-3
pends on Vacuum and Baro
Pressure)
Volts or (45-55 kPa) (De-
MAP
Baro
Volts or kPa
Volts or kPa
3-5
Volts (Depends on Altitude
and Barometric Pressure)
12.0-14.5 Volts
-10 to 30°
Bat
Volts
Spark Advance
Degrees
Knock Retard
Degrees
0°
Idle Air Control IAC
Minimum IAC Position
Idle Air Control Follower
Injector Pulse Width
Counts (Steps)
Counts (Steps)
Counts (Steps)
msec.
0-40 Counts
0-40 Counts
0 Counts
2-3 msec.
2.5-3.5
msec. (Depends on
Injector On Time Cranking
msec.
Water/Air Temperature)
1-2 GPH (3.7-7.5 L/h)
Varies
Fuel Consumption
Time From Start
GPH (L/h)
0:00:00-1092:00
Memory Calibration Check
Sum
Varies with Software revision
in ECM
Calibration and Check Sum
Oil Press/IO Level (See Note)
Engine Overtemp
OK/LO
OK
OK/Overheating
OFF/ON
OK
Lanyard Stop Mode
OFF
NOTE: MCM will read I/O Level and MIE will read Trans.
Index
90-861326--1 MARCH 1999
Page 5D-5
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 454 CID, Mercury MerCruiser 502 CID |
| Model Year | 1998, 1999, 2000, 2001 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
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Marine readers have rated Mercury MerCruiser GM V8 GM V8 454 CID 7.4L and 502 cid 8.2L Marine Engines Service Manual Number 23 5.0 out of 5.0 based on 1 product reviews. Just need the manual. Wrote review. Can't technically review what I haven't seen yet...