What does code P0309 mean?

Cylinder 9 Misfire Detected: Misfire detected in cylinder 9.

P0309 is rated as high severity. Address soon — may cause further damage.

P0309

Cylinder 9 Misfire Detected

Powertrain Code · High

What does P0309 mean?

Misfire detected in cylinder 9.

System: Ignition

P0309 is a powertrain diagnostic trouble code indicating cylinder 9 misfire detected. This code is classified as high severity, which means: address soon — may cause further damage.

Diagnostic data on this page is compiled from publicly available repair resources and technical service bulletins. Always have a qualified mechanic confirm the diagnosis before authorizing repairs on your vehicle.