P2317
Ignition Coil F Secondary Circuit
A fault is detected on the secondary (high-voltage) side of ignition coil F. The spark delivered to the plug is missing or too weak, causing a misfire on the cylinder served by coil F. Causes: a worn spark plug or wide gap, a cracked coil or boot, carbon tracking, or an open or leaking secondary winding.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: easy
Common causes
Ordered by how often each turns out to be the cause.
- Spark plug worn, fouled or with excessive electrode gapCommon
- Secondary breakdown inside coil FPossible
Parts involved
- Ignition Coil F
- Spark Plug Cyl F
- Ignition Secondary Lead
P2317 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.