The spark plug gap for a 2013 Honda Fit is typically 0.043–0.047 inches (1.1–1.2 mm).
In the 2013 Fit with the 1.5-liter i-VTEC engine, Honda specifies a narrow gap range to optimize combustion, throttle response, and emissions. When replacing spark plugs, using plugs that are pre-gapped to this range or checking and adjusting the gap before installation is recommended.
Gap specification for the 2013 Honda Fit
Below is a concise outline of the standard gap information you should know before installing new plugs.
- Standard gap range: 0.043–0.047 inches (1.1–1.2 mm).
- Most OEM and aftermarket plugs intended for the 1.5 L Fit are shipped pre-gapped within this range.
- If you buy non-OEM plugs, verify the gap with a feeler gauge and adjust if necessary to the 0.043–0.047 inch range.
Ensuring the gap stays within this range helps maintain optimal ignition, fuel economy, and smooth engine operation.
How to check and adjust the spark plug gap
To perform gap checks and adjustments safely, use a spark plug gap gauge and follow these steps.
- Gather tools: a feeler gauge or dedicated gap gauge, a torque wrench, and the correct replacement plugs for your vehicle.
- Remove the spark plug from the engine and inspect for wear or damage; measure the current gap at the outer ground electrode using the gauge.
- If the gap is too narrow, gently bend the ground electrode to increase the gap; if too wide, carefully bend it to decrease. Do not bend the center electrode.
- Reinstall the plug by hand to ensure the threads engage cleanly, then tighten to the manufacturer’s torque specification with a torque wrench. Recheck the gap after tightening if needed.
- Repeat for all plugs if you’re replacing multiple units.
Always refer to the owner's manual or service bulletin for the exact torque specification and any model-specific guidance. Improper torque or gap can cause misfires or damage to the threads and cylinder head.
Additional considerations
Different spark plug designs (copper, platinum, iridium) can have slightly different handling characteristics, but most plugs used in the 2013 Fit are pre-gapped by the manufacturer. If you replace with a non-OEM plug, confirm the gap on the packaging and adjust only as needed.
Summary
For a 2013 Honda Fit, the recommended spark plug gap is 0.043–0.047 inches (1.1–1.2 mm). Use plugs that are pre-gapped to this range or verify and adjust the gap before installation, and tighten to the specified torque. When in doubt, consult the owner's manual or a qualified technician to ensure proper installation and engine performance.