Code status
Needs verification
Not yet verified against SAE J2012_202509 / J2012DA. Treat unverified rows as a lookup aid, not repair authority.
- System
- Ignition / Misfire
- Scope
- iso-sae-controlled-p0
- Standard
- SAE J2012 / ISO 15031-6
- Source
- legacy-import
Diagnostic boundary
A diagnostic trouble code reports that a monitored test failed. It does not prove one specific part is bad, and manufacturer logic can add vehicle-specific conditions.
Do not clear repeated cylinder 8 misfires without repair; recurring misfire can damage the catalyst and mask mechanical faults.
Useful checks before replacing parts
- Compare cylinder 8 contribution, misfire counters, plug condition, coil command, injector data, and compression.
- Inspect local intake leaks, wiring damage, connector fit, and plug-well contamination near cylinder 8.
- Review freeze-frame temperature and load to separate cold-only, idle-only, and high-load misfires.
Related OBD-II codes
These nearby ignition / misfire entries can help compare wording and fault area. They may share the same verification status as the source database.