Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This error means that the part of the engine that helps inject fuel into cylinder 12 isn't working as it should, causing a timing problem.
The engine control module (ECM) has detected that the time taken for the low side booster of the high-pressure injector in cylinder 12 is not within the expected range.
The P3147 code indicates a problem with the timing of the low side booster circuit for the high-pressure injector in cylinder 12. This could be due to electrical issues, mechanical faults, or incorrect injector operation, leading to improper fuel delivery timing.
• Check engine light on
• Poor engine performance
• Increased fuel consumption
• Faulty injector
• Wiring issues in the injector circuit
• ECM malfunction
Injector: A device that delivers fuel into the engine's cylinders.
ECM: Engine Control Module, the computer that controls engine functions.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for cylinder 12 injector.
• Test the injector for proper operation.
• Replace the faulty injector.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Injector tester
$200 - $600
Moderate
• Vehicle 1
• Vehicle 2
• Vehicle 3
• Regular maintenance of the fuel system
• Periodic inspection of injector wiring
• Use high-quality fuel
Engine Performance
• Do not ignore the check engine light.
• Have the vehicle inspected by a professional mechanic.
Check with the vehicle manufacturer for warranty coverage on injectors.
This code has been associated with injector and wiring issues in high-performance engines.
Moderate – should be addressed soon to avoid further engine performance issues.
Driving with this code may lead to increased emissions and potential engine damage.
• Engine at operating temperature
• Vehicle in a safe environment for testing
Injector for cylinder 12 is located on the engine block, typically on the right bank in a V12 engine.
Q: Can I drive with a P3147 code?
A: It's not recommended to drive for extended periods, as it can lead to further engine damage.
Q: How can I reset the check engine light?
A: You can use an OBD-II scanner to reset the light, but ensure the issue is fixed first.
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