Table of Contents
ToggleWhat is P2149 : Engine Error code Causes Explained

Poor engine performance is caused by the P2149 fuel injector group circuit fault code. Understanding its origins, symptoms, and solutions may assist identify and cure the issue quickly, assuring optimum vehicle functioning and minimizing future damage.
How to Identify a DTCs Number

The P2149 Engine Error code can be identified using an OBD-II scanner, which retrieves the specific DTC from the vehicle’s onboard diagnostic system.
Understand, this trouble codes (DTCs) are 5 characters: 1 letter, 4 numbers. P-Powertrain indicates the fault code’s location. Generic or manufacturer-specific codes are indicated by the first digit. The second digit denotes the subsystem (7=transmission). The last two numbers describe the issue.
When this issue occurs, the check engine light or service engine soon warning will illuminate on the dashboard, alerting the driver to a potential problem.
Causes of P2149 Code:

- Faulty fuel injector(s):
One or more fuel injectors within group B may be malfunctioning, clogged, or leaking, causing an interruption in the electrical circuit. - Damaged wiring:
Damaged or frayed wires in the fuel injector harness leading to group B can cause an open circuit. - Loose or corroded connectors:
Corrosion or poor connection at the fuel injector connectors can disrupt the electrical signal. - Faulty PCM:
A faulty PCM can misinterpret the signals from the fuel injectors, leading to a P2149 code. - High resistance in the circuit:
Increased resistance in the wiring due to wear and tear can disrupt the voltage supply to the injectors.
Risk Level of P2149 Error Code:

A high-risk level for this error code typically means that the vehicle may experience severe drivability problems.
When facing a P2149 code along with by a “High Risk Level” warning, it’s essential to take immediate action.
Common Car Brands Affected by P2149 Code:

The P2149 engine error code is commonly found in the following list.
- Ford (F-150)
- Ram (1500)
- Toyota (Camry)
Video: P2149 Engine Error code
FAQ’s
What does the engine error code P2149 mean?
P2149 indicates a malfunction in the fuel injector group “B” supply voltage circuit, meaning the ECM has detected an issue with the injector power control.
What causes the error code P2149?
This error is usually caused by a faulty fuel injector, damaged wiring, a failing injector driver circuit, or a malfunctioning ECM.
Which vehicles are affected by the P2149 code?
This code is commonly found in diesel engines from manufacturers like Ford (F-150), Ram (1500) and Toyota (Camry) using electronic fuel injection systems.
What is the risk level of the error code P2149?
The risk level is high as it can cause rough idling, misfires, reduced engine power, poor fuel efficiency, and potential engine stalling.