Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2016 Subaru WRX BaseFACTORY OEM SERVICE PROCEDURE
Engine Ignition System (WRX): General Description: Specification
| Item | Specifications | |||
|---|---|---|---|---|
| Ignition coil | Type | FK0463 | ||
| Ignition system | Independent ignition coil | |||
| Manufacturer | Diamond Electric | |||
| Spark plug | Manufacturer and type | NGK: ILKAR8H6 | ||
| Thread size (diameter, pitch, length) | mm | 12, 1.25, 26.5 | ||
| Spark plug gap | mm (in) | Standard | 0.50 - 0.55 (0.020 - 0.022) | |
| Electrode | Center electrode: Iridium Ground electrode: Platinum |
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Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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