822488 Volvo.Penta Control sleeve

Table 1
Diagnostic Codes Table    
Code    Conditions which Generate this Code    System Response    
190-8 Engine Speed Sensor : Abnormal Frequency, Pulse Width, or Period     The engine speed is greater than zero rpm and the pattern from the timing ring is incorrect for 5 seconds.     The engine speed is set to zero rpm.
The code is active.
The code is logged if the pattern from the timing ring returns for 5 seconds.    
342-8 Secondary Engine Speed Sensor : Abnormal Frequency, Pulse Width, or Period    The Electronic Control Module (ECM) provides the engine speed/timing sensors with 12 1 VDC. The engine speed/timing sensors generate a pulse signal to the ECM. The signal is created as the teeth on the timing reference gear pass the pickup of the engine speed/timing sensors. A unique tooth pattern on the timing reference gear allows the ECM to determine the crankshaft position, rotation, and rpm. The ECM counts the pulses in order to determine the engine rpm. The timing reference gear is mounted on the rear of the left camshaft.The ECM memorizes the pattern of the pulses. The ECM compares that pattern to a standard pattern in order to determine the crankshaft position. The ECM uses this information to determine the position of the No. 1 piston. The ECM then triggers each fuel injector to fire in the correct firing order and at the correct time. The actual timing and duration of each injection is determined by the ECM. The ECM uses engine rpm and engine load to determine the timing and duration of injection. The loss of the signal from an engine speed/timing sensor generates a diagnostic code. The loss of the signals from both of the engine speed/timing sensors triggers the termination of the signals to the fuel injectors.If the primary engine speed/timing sensor fails, the ECM will use the secondary engine speed/timing sensor until electrical power is removed from the ECM. To prevent any unnecessary down time, repair the primary engine speed/timing sensor or replace the primary engine speed/timing sensor at the earliest possible convenience.
Illustration 1 g01384299
Schematic for the engine speed/timing sensors and the timing calibration sensorTest Step 1. Inspect Electrical Connectors and Wiring
Turn the main disconnect switch to the OFF position.
Illustration 2 g01286645
Location of the J1/P1 ECM connectors (1) J1 ECM connector
Illustration 3 g01215178
Location of the engine speed/timing sensors (typical left side engine view) (2) Secondary engine speed/timing sensor (3) Primary engine speed/timing sensor
Illustration 4 g01228794
Location of the timing calibration probe (typical right side engine view) (4) Timing calibration sensor
Thoroughly inspect connectors (1) . Also, thoroughly inspect the connectors for sensors (2) , (3) , and (4) . Refer to Troubleshooting, "Electrical Connectors - Inspect" for details.
Illustration 5 g01384302
P1 ECM connector (P1-13) Secondary engine speed/timing signal (P1-33) Primary engine speed/timing signal (P1-40) Engine timing calibration − (P1-41) Engine timing calibration + (P1-43) +12.5 V supply (P1-51) Return
Illustration 6 g01159881
Sensor connector (Terminal A) Sensor supply (Terminal B) Sensor return (Terminal C) Signal
Perform a 45 N (10 lb) pull test on each wire in the ECM connector and the sensor connectors that are associated with the circuit.
Check the allen head screw at each of the ECM connectors for the proper torque. Refer to Troubleshooting, "Electrical Connectors - Inspect" for the correct torque values.
Check the harness and the wiring for abrasion and for pinch points.Expected Result:All connectors, pins, and sockets are coupled and/or inserted. The harness and wiring are free of corrosion, of abrasion or of pinch points.Results:
OK - The harness and connectors appear to be OK. Proceed to Test Step 2.
Not OK - There is a problem with the connectors and/or wiring.Repair: Repair the connectors or wiring and/or replace the connectors or wiring. Ensure that all of the seals are properly in place and ensure that the connectors are coupled.Verify that the repair eliminates the problem.STOPTest Step 2. Check for "ACTIVE" Diagnostic Codes
Connect Caterpillar Electronic Technician (ET) to the service tool connector.
Turn the main disconnect switch to the ON position.
Check the diagnostic codes on Cat ET.Expected Result:No diagnostic codes are active.Results:
OK - A 190-8 diagnostic code or a 342-8 diagnostic code is not active.Repair: There may be an intermittent problem in the circuit. If an intermittent problem is suspected, refer to Troubleshooting, "Electrical Connectors - Inspect".STOP
Not OK - A 190-8 diagnostic code or a 342-8 diagnostic code is active. Proceed to Test Step 3.Test Step 3. Inspect the Engine Speed/Timing Sensor
Turn the main disconnect switch to the OFF position.
Remove the suspect engine speed/timing sensor.
Inspect the sensor tip for damage.Expected Result:The center of the tip of the engine speed/timing sensor is free of damage.Results:
OK - The engine speed/timing sensor is undamaged. Reinstall the sensor. Proceed to Test Step 4.
Not OK - The engine speed/timing sensor is damaged.Repair: Replace the engine speed/timing sensor.STOPTest Step 4. Check the Supply Voltage to the Sensor
Disconnect the connector for the suspect engine speed/timing sensor.
Turn the main disconnect switch to the ON position.
Measure the voltage between terminal A and terminal B at the suspect sensor connector.Expected Result:The supply voltage is 12 1 VDC.Results:
OK - The supply voltage is