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P2150 is a diagnostic trouble code (DTC) for "Fuel Injector Group B Supply Voltage Circuit Low". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.
The P2150 code is a generic powertrain code related to fuel or air meter injection system issues, including a fuel injector problem. In this case, the engine control module (ECM) has received a signal from the fuel injector group B circuit that is lower than preset threshold parameters.
Codes related to the P2150 include:
A P2150 code is stored when the ECM is sent a voltage reading for a set of fuel injectors that is outside of preset parameters. In this case, the ECM has detected an issue with Group B, which is typically engine Bank 2, containing Cylinder 2.
Typically, voltage signals will need to be at least 10% lower than preset parameters. Check your vehicle’s service manual for specifics for your vehicle’s make and model.
Several problems may cause a P2150 code including:
Symptoms of a P2150 code may include:
A mechanic may use several methods to diagnose a P2150 trouble code, including:
At times, the ECM is replaced when the actual problem is damaged circuitry in the fuel injection system. It is recommended to fully diagnose all possible causes for the P2150 code before replacing the ECM.
Because a vehicle’s safe driving operation most likely will be impacted due to faults that store a P2150 code, in addition to the possibility of excess vehicle emissions, this code is considered a potentially serious code. When this code appears, it is recommended to immediately take your vehicle to your local service center or mechanic for repair and diagnosis.
Several repairs can fix a P2150 trouble code and include:
Typically, additional engine misfire codes will accompany a P2150 trouble code. It is recommended to diagnose and repair codes in the order in which they appear, as subsequent codes may be a symptom of a larger problem.
In addition, a common cause for this problem is due to animals seeking shelter in the engine compartment, who then gnaw on and damage wiring.
YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6220.