Fuel Delivery and Air Induction: Service Precautions

PRECAUTION

HINT: Any diagnostic trouble code retained by the ECM will be erased when the negative (-) terminal cable is removed from the battery. Therefore, if necessary, read the diagnosis before removing the negative (-) terminal cable from the battery.

1. BEFORE WORKING ON FUEL SYSTEM, DISCONNECT NEGATIVE (-) TERMINAL CABLE FROM BATTERY

2. DO NOT SMOKE OR WORK NEAR AN OPEN FLAME WHEN WORKING ON FUEL SYSTEM

3. KEEP GASOLINE AWAY FROM RUBBER OR LEATHER PARTS

4. AIR INDUCTION SYSTEM
a. Separation of the engine oil dipstick, oil filler cap, PCV hose, etc. may cause the engine out of tune.
b. Disconnection, looseness or cracks in the parts of the air induction system between the throttle body and cylinder head will allow air suction and cause the engine out of tune.

5. FUEL SYSTEM




a. Observe these precautions when connecting the fuel tube connector (metallic type):
1. Check that there is any damage or foreign objects in the connected part of the pipe.
2. Match the axis of the connector with the axis of the pipe, and push into the connector until the connector makes a "click" sound. In case that the connection is tight, apply little amount of fresh engine oil on the tip of the pipe.




3. After having finished the connection, check if the pipe and the connector are securely connected by pulling them.
4. Check that there is any fuel leak.

b. Observer these precautions when handling the nylon tube:
1. Pay attention not to turn the connected part of the nylon tube and the quick connector with tube when connecting them.
2. Pay attention not to kink the nylon tube.
3. Do not remove the nylon tube.
4. Do not close the piping with the nylon tube by bending it.




c. Check that there is no fuel leak after doing maintenance anywhere on the fuel system.
1. Connect a hand-held tester to the DLC3.
- Connect the hand-held tester to the DLC3.
- Turn the ignition switch ON and push the hand-held tester main switch ON.
- Select the ACTIVE TEST mode on the hand-held tester.

NOTE: Do not start the engine.

- Please refer to the hand-held tester operator's manual for further details.

If you have no hand-held tester, connect the positive (+) and negative (-) leads from the battery to the fuel pump connector.

2. Check that there is no leak from any parts of the fuel system.
3. Turn the ignition switch OFF.
4. Disconnect the hand-held tester from the DLC3.