What is the P2149 fault codes? What is the description of the Fuel Injector Assembly “B” Supply Voltage Circuit / Open fault code? How can you fix P2149 fault codes? What are the symptoms and causes of the P2149 error code? …..
What is the P2149 fault code? What does it signify?
The fuel injectors regulate how much pressured fuel is delivered to the engine each cycle. Each cylinder has an injector that fuels the engine. These injectors are divided by the powertrain control module (PCM), into two groups “A” or “B”, for easy monitoring and control. The malfunction code P2149 will be set if the PCM detects more than one fuel injection in group “B”. You can refer to the manual for your vehicle to locate “B” fuel injectors.
The PCM controls the fuel injectors electronically and provides ground to the correct injector during every intake stroke of an engine. The injector injects fuel into the cylinder, which is mixed with the combustion chamber air to produce power. The proportion of fuel injected increases with increasing engine speed.
The fuel injection system in modern vehicles is a key component. Modern fuel injectors can be described as electronic components. It is essential that they function properly by having a steady and reliable supply voltage. Some vehicles send voltages to injectors in specific orders or groups. The PCM checks the circuits and fuel injectors regularly. Fault code P2149 is triggered if the PCM detects no voltage or injectors not working in group “B”.
The P2149 fault code can affect vehicles of all makes and models, including those made by Hyundai, Dodge, Chevrolet or Mercedes Benz.
What is the P2149 Fault Code and Why Does It Happen?
Here are some reasons why P2149 should be set.
- – Broken wires or connectors at the fuel injectors power source
- – Defective fuel injector (group B)
- – The PCM has become faulty or requires a reprogramming
What are the symptoms of the P2149 Fault code?
These symptoms may be present if you own a vehicle that has the code 2149.
- – Illumination for the check engine light
- – Hard starting the engine
- Engine Stalling and Stalling
- – Fluctuations of idle speed
- – Insufficient power for acceleration
- – Reduced traction on steep slopes
- – A decreased throttle response
- – Increased fuel use
- – Excessive smoke coming from the exhaust
- – The engine is noisy
- – O2 sensor and related fault codes can be adjusted as the vehicle runs “poor”.
How to Fix the P2149 Fault Code
Some repairs that could resolve the P2149 fault code are:
- – Repairing fuel injector wires and connectors that are damaged or broken
- – Replacing defective fuel injectors
- – Replacing injector harness
- – Reprogramming or replacing the PCM
How Serious Is the P2149 Fault Code
This code means that the circuit to the fuel injections is not working properly. Inoperative fuel injectors can cause engine problems such as misfiring and rough running. Sometimes, the engine may be difficult to start and could stall. This is a serious problem that you should address immediately.
