Mazda 3 manuals

Mazda 3 Service Manual: Spark Plug Inspection [Mzr 2.0, Mzr 2.5]

Mazda 3 Service Manual / Electrical / Ignition / Spark Plug Inspection [Mzr 2.0, Mzr 2.5]

Specification

Plug Gap Inspection

CAUTION:

  1. To avoid possible damage to the tip, do not adjust the spark plug gap. (L3Y2-18110)

  2. To prevent damaging the tip, use a wire type plug gap gauge when inspecting the spark plug gap. (L3Y2-18110)

1. Measure the spark plug gap using a wire type plug gap gauge.

  1. If not within the standard specification, replace the spark plug. (L3Y2-18110)

  2. If the spark plug gap is not within the specification, adjust it. (LFJD-18110)

Cleaning

CAUTION:

  1. Carbon may adhere to the tip of the spark plug during vehicle delivery or repeated short distance driving during the winter time. If there is any malfunction such as rough idling or start difficulty due to carbon adhesion causing plug fouling, burn off the carbon by performing no-load racing of the engine.

  2. When performing the no-load racing, apply the side brake and foot brake, move the shift lever to neutral (MTX), or the selector lever to P position (ATX) to prevent an accident and serious injury.

  3. To avoid possible damage to the spark plug tip, do not use a wire brush for cleaning. (L3Y2-18110)

NOTE:

  1. To avoid possible damage to the tip, use gasoline to clean the spark plugs after removing dirt.

  2. If the accelerator pedal is depressed continuously for a specified time, the engine speed may decrease to the idle speed. This is due to the PCM control operation, which prevents overheating, and it does not indicate a malfunction.

  3. Do not perform no-load racing at high engine speed continuously for 10 s or more

    .

1. If there is carbon adhering to the spark plug, perform no-load racing at 4,000 rpm

for 2 min

, 2 times

.

Visual Inspection

1. Inspect the following items:


Resistance Inspection

1. Measure the resistance of the spark plug using a tester as shown in the figure.


    Spark plug resistance [25C {77 F}]

  1. 3.07.5 kilohms

Ignition Key Illumination Removal/Installation
1. Disconnect the negative battery cable.. 2. Remove the column cover upper.. 3. Remove the ignition key illumination bulb. 4. Install in the reverse order of removal. ...

Spark Plug Inspection [Mzr 2.3 Disi Turbo]
Specification Spark plug type L3BD-18110, L3YD-18110 Plug Gap Inspection CAUTION: To avoid possible damage to the tip, do not adjust the plug gap. To prevent damaging t ...

Other materials:

Radar Sensors (Rear)
The radar sensors (rear) for the rear vehicle monitoring system are equipped inside the rear bumper, one each on the left and right sides. Sedan Hatchback The surface area of the rear bumper near the radar sensors (rear) should always be clean so that the rear vehicle monitoring sys ...

Inspecting Engine Oil Level
Be sure the vehicle is on a level surface. Warm up the engine to normal operating temperature. Turn it off and wait at least 5 minutes for the oil to return to the oil pan. Pull out the dipstick, wipe it clean, and reinsert it fully. Pull it out again and examine the level ...

Camshaft Position (CMP) Sensor Removal/Installation [Mzr 2.0, Mzr 2.5]
CAUTION: When replacing the CMP sensor, make sure there is no foreign material on it such as metal shavings. If it is installed with foreign material, the sensor output signal will malfunction resulting from fluctuation in magnetic flux and cause a deterioration in engine control. ...

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