P114A
Post Catalyst Fuel Trim Via Oxygen Sensor System Too Rich Bank 1
P114A is an OBD-II diagnostic trouble code meaning: Post Catalyst Fuel Trim Via Oxygen Sensor System Too Rich Bank 1. Common causes: malfunction of the oxygen sensor after the catalyst, fuel leak (leaking injectors). Estimated repair cost: $17–89.
Symptoms
- Increased fuel consumption
- Reduced engine power
- Smell of gasoline from the exhaust pipe
- Black smoke from the exhaust pipe
- Check Engine Light Is On
Causes
- Malfunction of the oxygen sensor after the catalyst
- Fuel leak (leaking injectors)
- Increased pressure in the fuel rail
- Malfunction of the mass air flow sensor (MAF)
- Problems with the ignition system (plugs, coils)
How to Fix
- Check the oxygen sensor readings after the catalyst
- Check injectors for leaks
- Measure the pressure in the fuel system
- Check the performance of the mass air flow sensor
- Check the condition of the spark plugs and coils
Related codes
FAQ
What does the P114A code mean?
P114A is an OBD-II diagnostic trouble code that indicates: Post Catalyst Fuel Trim Via Oxygen Sensor System Too Rich Bank 1
What causes a P114A error code?
The most common causes of P114A include: Malfunction of the oxygen sensor after the catalyst; Fuel leak (leaking injectors); Increased pressure in the fuel rail; Malfunction of the mass air flow sensor (MAF).
How do I fix a P114A diagnostic trouble code?
To fix P114A: Check the oxygen sensor readings after the catalyst. Check injectors for leaks. Measure the pressure in the fuel system. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P114A?
Yes, but get it checked soon
How much does it cost to fix P114A?
The estimated repair cost for P114A is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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