• Engine misfires
• Poor fuel economy
• Check Engine Light is on
• Faulty fuel injector
• Wiring issues such as shorts or open circuits
• Faulty ECM
ECM: Engine Control Module, the computer that controls engine functions.
Fuel Injector: A device that sprays fuel into the engine's intake manifold.
• P2146
• P2148
Fuel Injector Group A Supply Voltage Circuit Low
This code means that the computer in your car is having trouble sending enough power to a group of fuel injectors, which are like tiny squirt guns that spray fuel into the engine.
The engine control module (ECM) detects a low voltage condition in the circuit that supplies power to one or more fuel injectors in group A.
OBD-II Code P2147 is triggered when the ECM detects that the voltage in the fuel injector supply circuit for group A is below the expected range. This can affect the performance of the injectors, leading to engine misfires or poor performance.
• Use a scan tool to confirm the code and check for other related codes.
• Inspect the wiring and connectors for damage or loose connections.
• Test the fuel injectors in group A for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace faulty fuel injectors.
• Replace or reprogram the ECM if necessary.
• OBD-II scan tool
• Multimeter
• Fuel injector tester
$150 - $500
Moderate
• Ford F-250
• Chevrolet Silverado
• Dodge Ram
• Regularly inspect and maintain fuel system components.
• Ensure electrical connections are secure and free of corrosion.
• Use quality fuel to prevent injector clogging.
Engine Performance
• Avoid driving the vehicle until the issue is resolved to prevent further damage.
• Consult with a professional mechanic for accurate diagnosis and repair.
Check with your vehicle manufacturer; fuel injectors may be covered under certain powertrain warranties.
P2147 has been reported in vehicles with high mileage or those exposed to harsh driving conditions.
Moderate – Addressing this issue promptly can prevent engine damage and maintain performance.
Driving with a malfunctioning fuel injector can lead to increased emissions and potential safety hazards.
• Engine running
• Warm engine temperature
Fuel injectors are located on the engine, typically near the intake manifold.
Q: Can I drive with a P2147 code?
A: It's not recommended to drive with this code as it can lead to engine damage and poor performance.
Q: How serious is a P2147 code?
A: It's moderately serious and should be addressed to avoid further engine issues.
