P1313
PPowertrainMisfire Rate Causing Catalyst Damage (Bank 1)
What does this code mean?
Severity : HighP1313 reports a misfire rate on bank 1 high enough to risk damaging the catalytic converter. This is a manufacturer-specific code, so the exact meaning depends on the manufacturer. The engine control module has detected missed combustion events that send unburned fuel into the exhaust.
Symptoms
- Check engine light flashing or on.
- Engine shaking, especially at idle.
- Noticeable loss of power.
- Smell of unburned fuel from the exhaust.
- Higher fuel consumption.
Possible causes
- Worn or fouled spark plugs.
- Faulty ignition coil.
- Clogged or faulty injector.
- Intake vacuum leak.
- Low compression on a cylinder.
Diagnosis and repair
- Avoid driving far with a flashing light to protect the catalytic converter.
- Identify the affected cylinder using misfire counters in live data.
- Check plugs and coils, swapping a coil to see if the misfire follows.
- Check injectors, vacuum leaks and compression.
- Repair the cause, clear the code and road test.
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Code
P1313
Category
Powertrain
Prefix
P
Standard
OBD-II / SAE J2012