Fuel Pump: Service Precautions

PRECAUTION

HINT: Any diagnostic trouble code retained by the computer 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 to run 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 to run out of tune.

5. FUEL SYSTEM

a. Observe these precautions when handling nylon tube.
1. Pay attention not to turn the connected part of the nylon tube and the quick connector with force when connecting them.
2. Pay attention not to kink the nylon tube.
3. Do not remove the EPDM protector on the outside of the nylon tube.
4. Must not close the piping with the nylon tube by bending it.

b. Check that there are no fuel leaks after doing maintenance anywhere on the fuel system.




1. Connect a hand-held tester to the DLC3.
2. Turn the ignition switch ON, and push hand-held tester main switch ON.

NOTE Do not start the engine.

3. Select the active test mode on the hand-held tester.
4. Please refer to the hand-held tester operator's manual for further details.
5. If you have no hand-held tester, connect the positive (+) and negative (-) leads from the battery to the fuel pump connector.
6. Check that there are no leaks from any part of the fuel system.
7. Turn the ignition switch to LOCK.
8. Disconnect the hand-held tester from the DLC3.