3808093 Volvo.Penta Hose

Engine power is reduced when a properly functioning cylinder is cut out. Make sure that you will not damage auxiliary or driven equipment if the engine power is suddenly reduced.
Turn the battery switch for the ECM to the OFF position.
Verify that the ECM connector J2/P2 and the injector connectors J4/P4 through J19/P19 are properly connected.
Install the ET.
Turn the Battery switch for the ECM to the ON position.
Turn the Start/Run/Stop switch to the RUN position.
Apply a load to the engine.
Perform the following steps on all suspect cylinders (solenoids).
Use the diagnostic tests on the ET to initiate the Cylinder Cutout Test.
Check for a difference in the sound, feel, or power of the engine as each cylinder is cut out. The amount of change should be similar for all of the good cylinders. The amount of change should be minimal for a weak cylinder or a bad cylinder.
Disable the override.Expected Result:The amount of change should be similar for all of the good cylinders. The amount of change should be minimal for a weak cylinder or a bad cylinder.Results:
OK - There was a noticeable change in engine performance during the Cylinder Cutout Test.STOP
Not OK - There was no noticeable change in engine performance during the Cylinder Cutout Test. Proceed to test step 4.Test Step 4. Check the Adjustment of the Fuel Injector and of the Engine Valve Lash Setting.
Turn the Start/Run/Stop switch to the STOP position.
Turn the battery switch for the ECM to the OFF position.
Check the adjustment of the fuel injector and of the engine valve lash setting. Refer to the Systems Operation, "Testing and Adjusting".Expected Result:The engine valve lash setting should be correct. The injectors should be okay.Results:
OK - The engine valve lash setting is correct. The injectors are okay.STOP
Not OK - The engine valve lash setting is incorrect. The injector is not okay. A problem is found with the injector.Repair: Adjust the engine valve lash. Refer to the Systems Operation, "Testing and Adjusting". Repair the injector. If the problem is still present, replace the injector. If the new injector has a 4 Digit code that is different from the old injector, change the code in the ECM. STOPTest Step 5. Check the Resistance of the Harness from the Solenoid to the ECM Connector.
This engine uses high voltage to control the fuel injectors.Disconnect electronic fuel injector enable circuit connector to prevent personal injury.Do not come in contact with the fuel injector terminals while the engine is running.
Turn the Start/Run/Stop switch to the STOP position.
Turn the battery switch for the ECM to the OFF position.
Disconnect the ECM connector J2/P2 and the injector connectors J4/P4 through J19/P19.
Illustration 1 g00745747
8 Cylinder Engine
Illustration 2 g00745748
12 or 16 Cylinder Engine
Measure the resistance at the ECM connector P2 between the power output for the individual solenoid and the solenoid return. For the eight cylinder engine, refer to Illustration 1. For the twelve or the sixteen cylinder engine, refer to Illustration 2.Expected Result:The resistance should be greater than 20,000 Ohms.Results:
OK - The resistance is greater than 20,000 Ohms. Proceed to test step 6.
Not OK - The resistance is less than 20,000 Ohms.Repair: Repair the connectors or wiring and/or replace the connectors or wiring.STOPTest Step 6. Check for Shorts in the Harness to Engine Ground.
This engine uses high voltage to control the fuel injectors.Disconnect electronic fuel injector enable circuit connector to prevent personal injury.Do not come in contact with the fuel injector terminals while the engine is running.
For the 3508B, measure the resistance between the following points and engine ground: P2-5, P2-16, P2-17, P2-26, P2-27, P2-30, P2-31, P2-32, P2-36, P2-37, P2-38 and P2-39.
For either the 3512B engine or the 3516B engine, measure the resistance between the following points and engine ground: P2-4, P