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:

Valve Clearance Inspection [Mzr 2.0, Mzr 2.5]
1. Remove the battery cover.. 2. Disconnect the negative battery cable.. 3. Remove the plug hole plate.. 4. Disconnect the wiring harness. 5. Remove the ignition coils.. 6. Remove the spark plugs.. 7. Remove the ventilation hose. 8. Remove the oil level gauge. 9. Remove the cylinder ...

Replacing Rear Window Wiper Blade (5-Door)
When the wiper no longer cleans well, the blade is probably worn or cracked. Replace it. CAUTION To prevent damage to the wiper arm and other components, do not move the wiper by hand. Remove the cover ( With stopper type) Remove the stopper and raise the wi ...

Throttle Body Inspection [Mzr 2.0, Mzr 2.5]
Resistance Inspection 1. Remove the battery cover.. 2. Disconnect the negative battery cable.. 3. Disconnect the throttle body connector. 4. Measure the resistance between throttle body terminals E and F. Throttle body resistance 0.3100 ohms [20C {68 F}] If not as ...

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