Nissan Altima Owners Manual: Spark plugs
REPLACING SPARK PLUGS
Iridium-tipped spark plugs
It is not necessary to replace iridium-tipped A spark plugs as frequently as conventional type spark plugs because they last much longer. Follow the maintenance log shown in the “NISSAN Service and Maintenance Guide”. Do not service iridium-tipped spark plugs by cleaning or regapping.
● QR25DE: Always replace spark plugs with recommended ones.
● VQ35DE: Always replace spark plugs with recommended or equivalent ones
Be sure the engine and ignition switch are off and that the parking brake is engaged securely.
Be sure to use the correct socket to remove the spark plugs. An incorrect socket can damage the spark plugs.
If replacement is required, see your NISSAN dealer for assistance.
Speedometer and odometer
Speedometer The speedometer indicates vehicle speed. Odometer/Twin trip odometer The odometer 1 and the twin trip odometer 2 are displayed below the Vehicle Information Display when the ignition switch is placed in the ON position. The odometer records the total distance the vehicle ha ...
Two types of fuses are used. Type A is used in the fuse boxes in the engine compartment. Type B is used in the passenger compartment fuse box. Type A fuses are provided as spare fuses. They are stored in the passenger compartment fuse box. Type A fuses can be installed in the engine com ...
P1805 Brake switch
Description Brake switch signal is applied to the ECM via the stop lamp switch when the brake pedal is depressed. This signal is used mainly to decrease the engine speed when the vehicle is being driven. DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1.PERFORM DTC CONFIRMATION ...