PRECAUTIONS 1. Before working on the fuel system, disconnect the negative terminal from the battery. HINT: Any diagnostic code retained by the computer will be erased when the battery terminal is removed. Therefore, if necessary, read the code before removing the battery terminal. CAUTION: Work must be started after approx. 20 seconds or longer from the time the ignition switch is turned to the "LOCK" position and the negative (—) terminal cable is disconnected from the battery. 2. Do not smoke or work near an open flame when working on the fuel system. 3. Keep gasoline off rubber or leather parts. INSPECTION PRECAUTIONS MAINTENANCE PRECAUTIONS 1. INSURE CORRECT ENGINE TUNE-UP 2. PRECAUTIONS WHEN CONNECTING GAUGE (a) Connect the tachometer test probe to the terminal IG (—) of check connector. (b) Use the battery as the power source for the timing light, tachometer, etc. 3. IN EVENT OF ENGINE MISFIRE THE FOLLOWING PRECAUTIONS SHOULD BE TAKEN (a) Insure proper connection of battery terminals, etc. (b) Handle high-tension cords carefully. (c) After repair work, insure that the ignition coil terminals and all other ignition system line are reconnected securely. (d) When cleaning the engine compartment, be especially careful to protect the electrical system from water. 4. PRECAUTIONS WHEN HANDLING OXYGEN SENSOR(S) (a) Do not allow oxygen sensor to drop or hit against an object. (b) Do not allow water to come into contact with the sensor or attempt to cool it.