The P2096 error code appears with the message “Catalyst Fuel Trim System Too Lean (Bank 1).”
What does this mean?
It means a rich air/fuel mixture in engine block #1. This indicates either too much air or too little fuel in the mix.
Oxygen sensors placed in the exhaust system of vehicles measure the level of oxygen in the design and send this information to the ECU. Based on this data, the car’s brain adjusts the amount of air and fuel sent to the system.
If the air/fuel ratio in cylinder #1 is incorrect and the air ratio is too high, the ECU produces the P2096 code. In such a case, to balance the air/fuel mixture, the ECU sends more fuel to the system, which increases fuel consumption.
Possible causes of the problem
- Clogged air filter
- Malfunctioning fuel pump
- Malfunctioning fuel pressure regulator
- Leaking or faulty injectors
- Spark plug-related problems
- Air leak near the oxygen sensor
- Malfunctioning oxygen sensor
- Malfunctioning mass air flow sensor
- Cracked exhaust manifold or worn gaskets
Symptoms
When the error code P2096 occurs, at least one of the following symptoms can be observed:
- Illumination of the engine warning light
- Rough idle, engine speed problems
- Increased fuel consumption
- Acceleration problems in the vehicle
- Heating of the catalytic converter
FAQ
What is the P2096 error code?
The P2096 code indicates a rich air/fuel mixture in engine block #1, meaning there is either too much air or too little fuel in the mix.
What are the possible causes of the P2096 error code?
Possible causes of the P2096 errorinclude a clogged air filter, malfunctioning fuel pump, malfunctioning fuel pressure regulator, leaking or faulty injectors, spark plug-related problems, air leak near the oxygen sensor, malfunctioning oxygen sensor, malfunctioning mass air flow sensor, a cracked exhaust manifold or worn gaskets.
What are the symptoms of the P2096 error code?
Symptoms of the P2096 include illumination of the engine warning light, rough idle or engine speed problems, increased fuel consumption, acceleration problems in the vehicle, and catalytic converter heating.