3582089 Volvo.Penta Key

Illustration 1 g01137012
Schematic for the engine speed/timing sensors
The connection of any electrical equipment and the disconnection of any electrical equipment may cause an explosion hazard which may result in injury or death. Do not connect any electrical equipment or disconnect any electrical equipment in an explosive atmosphere.
Test Step 1. Inspect the Electrical Connectors and the Wiring
Turn the keyswitch to the OFF position.
Illustration 2 g01137151
Top engine view (1) Timing calibration probe connector (2) P1/J1 ECM connector (3) Primary engine speed/timing sensor (4) Secondary engine speed/timing sensor
Thoroughly inspect connectors (1) and (2) .,Also inspect the connectors for speed/timing sensors (3) and (4). Refer to Troubleshooting, "Electrical Connectors - Inspect".
Illustration 3 g01137168
P1 ECM connector (P1-29) Digital return (P1-32) Speed/timing sensor supply (P1-38) Primary speed/timing sensor signal (P1-39) Secondary speed/timing sensor signal
Perform a 45 N (10 lb) pull test on each of the wires that are associated with the engine speed/timing sensors.
Check the torque of the allen head screws for the ECM connectors. Refer to Troubleshooting, "Electrical Connectors - Inspect" for the correct torque value.
Check the harness and the wiring for abrasion and for pinch points from each sensor back to the ECM.Expected Result:All of the connectors, pins and sockets are completely coupled and/or inserted and the harness and wiring are free of corrosion, of abrasion and of pinch points.Results:
OK - The harness and connectors appear to be in good repair. Proceed to Test Step 2.
Not OK - The connectors and/or wiring are not OK.Repair: Repair the wiring and/or the connectors. Replace parts, if necessary. Ensure that all of the seals are properly in place and ensure that the connectors are completely coupled. Verify that the repair eliminates the problem.STOPTest Step 2. Check for Diagnostic Codes
Connect the Caterpillar Electronic Technician (ET) to the service tool connector. Refer to Troubleshooting, "Electronic Service Tools".
Turn the keyswitch to the ON position.
Check for active diagnostic codes on Cat ET.Look for these codes:
190-02
190-03
190-08
342-02
342-03
342-08Expected Result:None of the above diagnostic codes are active.Results:
OK - None of the above codes are active, but there is a problem that has been associated with the engine speed/timing sensors. Proceed to Test Step 4.
190-02 and/or 190-08 is Active - The signal for the primary engine speed/timing sensor is lost or abnormal. Proceed to Test Step 3.
190-03 is Active - There may be a problem with the wiring harness for the primary engine speed/timing sensor. Proceed to Test Step 7.
342-02 and/or 342-08 is Active - The signal for the secondary engine speed/timing sensor is lost or abnormal. Proceed to Test Step 3.
342-03 is Active - There may be a problem with the wiring harness for the secondary engine speed/timing sensor. Proceed to Test Step 7.Test Step 3. Inspect the Condition of the Engine Speed/Timing Sensors
Turn the keyswitch to the OFF position.
Remove the suspect engine speed/timing sensor.
Inspect the plastic sliphead for damage.
Check the tension on the sliphead by gently prying the sliphead out of the sensor body. Extend the sliphead 3 to 4 mm (0.12 to 0.16 inch). Push the sliphead back into the sensor body from the extended position. Movement of the sliphead will require a small amount of force. The amount of tension that is on the sliphead must not allow movement of the sliphead during engine operation.
Again, pull the sliphead from the sensor body to the fully extended position.Expected Result:The sensor is not damaged. An adequate amount of tension is felt on the sliphead and the movement is smooth.Results:
OK - The engine speed/timing sensor and the sliphead are undamaged. The tension on the sliphead is normal.Repair: Reinstall the engine speed/timing sensor. Ensure that the camshaft gear is positioned correctly prior to installing the sensor. Proceed to Test Step 4.
Not OK - The engine speed/timing sensor or the sliphead has insufficient tension, or the sliphead is damaged.Repair: Replace the speed/timing sensor that is damaged. Refer to Disassembly and Assembly, "Speed/Timing Sensor - Remove and Install" prior to installing the new sensor.Calibrate the new sensor. Refer to Troubleshooting, "Engine Speed/Timing Sensor - Calibrate". Verify that the repair eliminates the problem.STOPTest Step 4. Check the Engine Speed on Caterpillar Electronic Technician (ET)
Turn the keyswitch to the ON position and crank the engine.
Observe the engine speed on Cat ET while the engine is cranking.Expected Result:Cat ET displays a steady engine speed between 100 and 250 rpm while the engine is cranking and the engine starts.Results:
OK - The engine speed/timing sensor is operating normally at this time.Repair: Reconnect the known good engine speed/timing sensor.If you are troubleshooting an intermittent problem, refer to Troubleshooting, "Electrical Connectors - Inspect".STOP
Not OK - Cat ET displays zero engine speed and the engine does not start. Proceed to Test S