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Ignition System (L3): Other Mazda 5 I

Ignition System 5 illustrations ~180 words

FIRING ORDER

Note. Firing Order is 1-3-4-2.

Scheme 2

Scheme 2: FIRING ORDER
Scheme 2: FIRING ORDER

WIRE ROUTING

Note. The 2.3L engine is equipped with coil-on-plug ignition.

Scheme 3

Scheme 3: IGNITION COIL REMOVAL/INSTALLATION [L3]
Scheme 3: IGNITION COIL REMOVAL/INSTALLATION [L3]

Scheme 4

Scheme 4: IGNITION COIL REMOVAL/INSTALLATION [L3]
Scheme 4: IGNITION COIL REMOVAL/INSTALLATION [L3]
  1. Remove the battery cover. (See «BATTERY REMOVAL/INSTALLATION [L3]»(ref-244326-S41790335602006092100000) ).
  2. Disconnect the negative battery cable.
  3. Remove the plug hole plate. (See «PLUG HOLE PLATE REMOVAL/INSTALLATION [L3]»(ref-244325-S01662276622006092100000) ).
  4. Remove in the order indicated in the table.
  5. Install in the reverse order of removal. IGNITION COIL REMOVING ORDER 1 Connector 2 Ignition coil

Cleaning

CAUTIONCarbon 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. 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 accident and serious injury. To avoid possible damage to the spark plug tip, do not use a wire brush for cleaning.

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

  1. If there is carbon adhering to the spark plug, perform no-load racing at 3,000 rpm for 3 min .

Scheme 5

Scheme 5: Visual inspection
Scheme 5: Visual inspection
  1. Inspect the following items: If any of the following malfunction are indicated, replace the spark plug. Insulator breakage Worn electrode Damaged gasket Badly burned insulator (sparking side)

Scheme 6

Scheme 6: Resistance Inspection
Scheme 6: Resistance Inspection
  1. Measure the resistance of the spark plug using a tester as shown in the figure. If not within the specification, replace the spark plug. Spark plug resistance [25 °C {77 °F}] 3.0-7.5 kilohms

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