0320140 JOHNSON "O"RING,Small

Illustration 1 g00599630
8 Cylinder Engine
Illustration 2 g00599635
12 or 16 Cylinder EngineTest Step 1. Check for Connector Damage.
Turn the circuit breaker for the battery to the OFF position.
Turn the ECS to the OFF/RESET position.
Check the connectors and wiring for the following problems: damage, corrosion, abrasion and incorrect attachment.Expected Result:The connectors and wiring should be free of the following problems: damage, corrosion, abrasion and incorrect attachment.Results:
OK - Proceed to test step 2.
Not OK - Repair: Repair the connectors and/or wiring or replace the connectors and/or wiring. Stop.Test Step 2. Check for LOGGED Diagnostic Codes
Connect the ET.
Turn the circuit breaker for the battery to the ON position.
Turn the ECS to the STOP position.
Observe the diagnostic codes on the ET.Expected Result:A CID-FMI 1-05 to 16-05 or 1-06 to 16-06 should not be logged.Results:
OK - Proceed to test step 3.
Not OK - Proceed to test step 4.Test Step 3. Perform the Cylinder Cutout Test.
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.
Note: The test verifies that the ECM can fire the solenoids. Do not try to crank the engine during this test. The engine will start and the ECM will terminate the Injector Solenoid Test.
Turn the circuit breaker for the battery to the OFF position.
Turn the ECS to the OFF/RESET position.
Verify that the ECM connector J2/P2 and the injector connectors J4/P4 through J19/P19 are properly connected.
Turn the circuit breaker for the battery to the ON position.
Install the ET.
Start the engine.
Apply a load to the engine.
Use the diagnostic tests on the ET to initiate the injector solenoid 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. Repeat above steps for each cylinder (solenoid).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 - Stop.
Not OK - Proceed to test step 5.Test Step 4. Check the Harness Resistance.
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 circuit breaker for the battery to the OFF position.
Turn the ECS to the OFF/RESET position.
Disconnect J2/P2 and J4/P4 through J19/P19.
Measure the resistance at the J2 connector 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 - Proceed to test step 6.
Not OK - Repair: Repair the connectors and/or wiring or replace the connectors and/or wiring. Stop.Test Step 5. Check the Spring and the Valve Lash.
Turn the circuit breaker for the battery to the OFF position.
Turn the ECS to the OFF/RESET position.
Check the Injector and the engine Valve Lash Setting. Refer to the Systems Operation.Expected Result:Results:
OK - The injector is OK. Stop.
Not OK - A problem is found with the injector.Repair: 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. Stop.Test Step 6. Check the Harness Resistance.
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: J2-5, J2-16, J2-17, J2-26, J2-27, J2-30, J2-31, J2-32, J2-36, J2-37, J2-38 and J2-39.
For the 3512B and 3516B, measure the resistance between the following points and engine ground: J2-4, J2-5, J2-6, J2-10, J2-11, J2-12, J2-16, J2-17, J2-18, J2-21, J2-22, J2-26, J2-27, J2-28, J2-30, J2-31, J2-32, J2-33, J2-34, J2-36, J2-37, J2-38, J2-39 and J2-40.Expected Result:The resistance should be greater than 20,000 Ohms.Results:
OK - Proceed to test step 7.
Not OK - Repair: Repair the connectors and/or wiring or replace the connectors and/or wiring. Stop.Test Step 7. Check the Harness Resistance.
Use a suitable piece of wire to short socket 1 to socket 2 at each injector connectors.
Measure the resistance at the J2 connector 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 less than 10 Ohms.Results:
OK - Proceed to test step 8.
Not OK - Repair: Repair the connectors and/or wiring or replace the connectors and/or wiring. Stop.Test Step 8. Measure the Resistance at the Valve Cover Base.