P0302 Subaru Outback
Cylinder 2 Misfire Detected · Powertrain Code · High · Repair: Easy
What is P0302?
Misfire detected in cylinder 2. Typically caused by a worn spark plug, bad ignition coil, faulty fuel injector, or low compression in that cylinder.
When the Subaru Outback triggers code P0302 (cylinder 2 misfire detected), it typically points to an issue in the powertrain system. This is a high severity code, so address it promptly to avoid further damage or safety concerns. Below you'll find the most common causes, symptoms, and repair options specific to the Subaru Outback.
This repair is rated easy, meaning basic tools, no lift needed.
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 Subaru Outback.
Common Causes on Subaru Outback
- Worn or fouled spark plug on cylinder 2 (passenger side rear on boxer)
- Failed ignition coil on cylinder 2
- Fuel injector issue on cylinder 2
- Low compression from head gasket leak between cylinders
Symptoms
- Check Engine Light flashing if severe
- Rough idle with boxer-typical vibration amplified
- Power loss
- Fuel smell from exhaust
Notes for Subaru Outback
On boxer engines, cylinder 2 is accessible from the passenger side; no need to remove the intake manifold.