P2149 OBD-II: Fuel Injector Group "B" Supply Voltage Circuit/Open
P2149 Severity
Should you fix P2149 yourself?
Identifying an OBD code is just the start of a complete diagnostic routine. Most trouble codes are caused by a sensor reporting a value that is out of range. Just replacing a sensor may not fix underlying issues. Be sure to understand the code, the part or system in your car that the code refers to, and the risks of delaying professional repair.
Proper diagnosis will save you time and money on unnecessary repairs.
Urgent codes indicate immediate action is necessary. These are urgent and significant malfunctions that can cause severe damage to the vehicle or harm the driver and passengers.
What causes OBD-II fault code P2149?
The engine computer (PCM) controls the signal to the fuel injectors in groups of two. If the PCM detects one or both of the fuel injectors in that group are not functioning properly, the PCM will set code P2149. The two injectors in that group will be disabled to prevent damage to additional components.
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What Does P2149 Code Mean?
OBD-II Code P2149 is defined as a Fuel Injector Group "B" Supply Voltage Circuit/Open
The engine computer (PCM) controls the signal to the fuel injectors in groups of two. If the PCM detects one or both of the fuel injectors in that group are not functioning properly, the PCM will set code P2149. The two injectors in that group will be disabled to prevent damage to additional components.
P2149 Symptoms
- Engine may run rough
Common Problems That Trigger the P2149 Code
- Fuel injector failure
- Powertrain Control Module (PCM) failure
- Wiring issue
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