
Ignition
Page 2A-10
90-8M0050731 MAY 2011
Troubleshooting without a Computer Diagnostic System (CDS)
Troubleshooting without the computer diagnostic system (CDS) is limited to checking resistance on some of the sensors.
Typical failures usually do not involve the PCM. Connectors, setup, or mechanical wear are most likely at fault.
•
Verify the ignition spark plug boots are securely installed (pushed in) onto the spark plugs.
•
The engine may not run or may not run above idle with the wrong spark plugs installed.
•
Swap ignition coils to see if the problem follows the coil or stays with the particular cylinder.
IMPORTANT: Disconnecting a sensor while the engine is running may result in a fault recording in the PCM Fault History. Use
the CDS to view the PCM fault history when troubleshooting/repair is completed.
•
If all cylinders exhibit similar symptoms, the problem is with a sensor or harness input to the PCM.
•
If problem is speed related or intermittent, it is probably connector or contact related. Inspect connectors for corrosion, loose
wires, or pins pushed back into the connector. Verify the connectors are properly seated.
•
Inspect the harness for damage: pinched or cut wires and chafing.
•
Secure the grounds and all connections involving ring terminals. Apply Liquid Neoprene to all ring terminal connections.
Tube Ref No.
Description
Where Used
Part No.
25
Liquid Neoprene
All ring terminal connections
92- 25711 3
•
Inspect the fuel pump harness connector for corrosion, loose wires, or pins pushed back into the connector.
•
Check the fuel pump pressure.
•
Check the air compressor air pressure.
Troubleshooting with the Computer Diagnostic System (CDS)
The computer diagnostic system (CDS) is designed to help technicians diagnose and repair Mercury Marine 2 and 4 cycle engines.
Attach the diagnostic cable to the PCM diagnostic connector. This will enable the technician to monitor sensors, PCM data values,
and the real time status of the switches. Use the 3 m (10 ft.) extension cable between the CDS diagnostic connector and the PCM
adapter to monitor the engine system while at the helm.
a -
Diagnostic terminal connector
The PCM program can help diagnose intermittent engine problems. It will record the state of the engine sensors and switches for
a period of time, and then can be played back to review the recorded information.
Refer to the computer diagnostic system reference manual for complete diagnostic procedures.
Computer Diagnostic System (CDS)
Order through SPX
Extension Cable
84‑825003A 1
Adapter Harness
84‑822560A13
a
39106
Содержание 200 OptiMax Jet Drive
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Страница 30: ...General Information Notes 90 8M0050731 MAY 2011 Page 1C 5 ...
Страница 43: ...General Information Notes Page 1C 18 90 8M0050731 MAY 2011 ...
Страница 84: ...Ignition Notes 90 8M0050731 MAY 2011 Page 2A 3 ...
Страница 89: ...Ignition Page 2A 8 90 8M0050731 MAY 2011 Electrical Plate Engine Harness 44731 1 2 3 4 5 6 ...
Страница 147: ...Charging and Starting System Notes Page 2B 36 90 8M0050731 MAY 2011 ...
Страница 153: ...Timing Synchronizing and Adjusting Notes Page 2C 6 90 8M0050731 MAY 2011 ...
Страница 156: ...Fuel Pump Notes 90 8M0050731 MAY 2011 Page 3A 3 ...
Страница 177: ...Direct Fuel Injection Page 3B 14 90 8M0050731 MAY 2011 Fuel Hose Components 4256 3 8 1 8 8 5 8 8 8 8 8 6 7 4 4 2 ...
Страница 179: ...Direct Fuel Injection Page 3B 16 90 8M0050731 MAY 2011 Air Hose Components 4257 1 1 2 3 6 4 5 7 8 9 ...
Страница 245: ...Direct Fuel Injection Notes Page 3B 82 90 8M0050731 MAY 2011 ...
Страница 248: ...Oil Injection Notes 90 8M0050731 MAY 2011 Page 3C 3 ...
Страница 261: ...Oil Injection Notes Page 3C 16 90 8M0050731 MAY 2011 ...
Страница 275: ...Powerhead Page 4A 10 90 8M0050731 MAY 2011 Exhaust Manifold and Exhaust Plate 7 44904 1 2 3 4 5 6 8 10 9 7 ...
Страница 277: ...Powerhead Page 4A 12 90 8M0050731 MAY 2011 Cylinder Head 14 44903 1 2 3 3 4 5 6 7 8 9 10 ...
Страница 283: ...Powerhead Page 4A 18 90 8M0050731 MAY 2011 Ref No Qty Description Torque Nm lb in lb ft 41 1 Hose 42 1 Worm gear clamp ...
Страница 326: ...Powerhead 90 8M0050731 MAY 2011 Page 4A 61 Starboard Side Oil Hose Routing 45579 ...
Страница 327: ...Powerhead Page 4A 62 90 8M0050731 MAY 2011 Port Side Oil Hose Routing 45580 ...
Страница 339: ...Powerhead Notes Page 4A 74 90 8M0050731 MAY 2011 ...
Страница 346: ...Cooling Notes 90 8M0050731 MAY 2011 Page 4B 7 ...
Страница 349: ...Cooling Notes Page 4B 10 90 8M0050731 MAY 2011 ...
Страница 367: ...Pump Unit Page 5A 18 90 8M0050731 MAY 2011 Ref No Qty Description Torque Nm lb in lb ft 41 1 Hose 42 1 Worm gear clamp ...