Ignition System - Spark Plug Inspection
16-54prose procedureSpark plug part numbers marked (*) apply to the 1.6 L DOHC engine only. Separate plug recommendations for unleaded vs leaded gasoline.
Spark Plug Inspection
- 1Inspect the electrodes and ceramic insulator for: improper gap, oil-fouling, carbon deposits, cracked center electrode insulator.
- 2Replace the plug if the center electrode is rounded as shown below.
- 3Adjust the gap with a suitable gapping tool.Electrode Gap: 1.0-1.1 mm (0.039-0.043 in)
- 4Screw the plugs into the cylinder head finger tight, then torque them to 18 N·m (1.8 kg-m, 13 lb-ft).NOTE: Apply a small quantity of anti-seize compound to the plug threads before installing.
Burned or worn electrodes may be caused by: Lean fuel mixture; Advanced ignition timing; Loose spark plug; Plug heat range too high; Insufficient cooling.
Fouled plug may be caused by: Rich fuel mixture; Retarded ignition timing; Oil in combustion chamber; Incorrect spark plug gap; Plug heat range too low; Excessive idling/low speed running; Clogged air cleaner element; Deteriorated ignition coil or ignition wires.
Unleaded gasoline
BrandNGK
StandardBCPR6E-11
OptionalBCPR6EY-N11, BCPR7E-11, BCPR7EY-N11
Unleaded gasoline
BrandND
StandardQ20PR-U11
OptionalQ22PR-U11
Leaded gasoline
BrandNGK
StandardBCPR6E-11
OptionalBCPR5E-11 (*), BCPR7E-11
Leaded gasoline
BrandND
Standard20PR-U11, 20PR-UL11 (*)
Optional16PR-U11 (*), 16PR-UL11 (*), 20PR-U11 (*), 22PR-U11, 22PR-UL11 (*)
NOTE
(*): 1.6 ℓ DOHC only
| Specification | Value |
|---|---|
| Electrode Gap | 1.0-1.1 mm (0.039-0.043 in) |
| Spark plug | 18N·m |
Electrode Gap
1.0-1.1 mm (0.039-0.043 in)
Spark plug
18N·m