Misfire Rate Catalyst Damage Fault - Bank 2
P1314 is an OBD-II trouble code that indicates misfire rate catalyst damage fault - bank 2. This page explains what the code means, what issues may trigger it, common symptoms and where to look next.
P1314 code meaning is one of the most common OBD-II searches when a warning light appears on the dashboard.
Drivers searching for P1314 usually want to know what the code means, whether the car is safe to drive and what part may need testing first.
Likely causes
- • Worn spark plugs or ignition parts
- • Injector or fueling imbalance
- • Compression-related engine issue
- • Catalytic converter efficiency issue
- • Upstream engine running fault
- • Faulty O2 sensor readings
Symptoms
- • Check engine light illuminated
- • Engine shaking or rough idle
- • Loss of power under acceleration
- • Increased emissions
- • Reduced fuel efficiency
Severity
High
Can you keep driving?
It is usually best not to keep driving for long with a misfire, because it can damage the catalytic converter and worsen engine running.
Common fix areas
- • Inspect spark plugs and ignition coils
- • Check injector performance and fuel delivery
- • Test compression if misfire persists
- • Check upstream engine faults first
- • Review oxygen sensor data
- • Test catalytic converter efficiency
Manufacturer notes
FAQs
What does P1314 mean?
P1314 means misfire rate catalyst damage fault - bank 2.
What can cause P1314?
Common causes include component failure, wiring faults, incorrect sensor readings, leaks, pressure issues or related upstream faults in the same system.
Can I keep driving with P1314?
That depends on how the car is behaving. If there is rough running, overheating, loss of power or stalling, it should be diagnosed quickly.
Does P1314 always mean I need a new part?
No. A fault code points you to a system or condition, but proper diagnosis is still needed before replacing parts.