Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that there is a problem with the electrical circuit that controls the fuel injector for cylinder 11 in your car's engine. It's like a light bulb not getting enough electricity to turn on.
The engine control module (ECM) has detected a low voltage condition in the high side circuit of the high-pressure injector for cylinder 11.
The P3179 code indicates that the ECM has identified a low voltage or open circuit condition in the high side of the high-pressure injector circuit for cylinder 11. This can affect the injector's ability to deliver the correct amount of fuel to the cylinder, leading to performance issues.
• Engine misfire
• Poor fuel economy
• Check Engine Light illuminated
• Faulty fuel injector
• Wiring issues or poor connections in the injector circuit
• Failed ECM or control module
ECM: Engine Control Module, the computer that controls engine functions.
Injector: A component that sprays fuel into the engine's cylinders.
• Inspect the wiring and connectors for cylinder 11's injector.
• Test the injector's resistance and operation.
• Check the ECM for any additional fault codes.
• Repair or replace damaged wiring or connectors.
• Replace the faulty injector.
• Reprogram or replace the ECM if necessary.
• Multimeter
• OBD-II scanner
• Fuel injector tester
$200 - $600
Moderate
• Vehicle 1
• Vehicle 2
• Vehicle 3
• Regularly inspect and maintain the fuel injector system.
• Ensure clean and secure electrical connections.
• Perform routine engine diagnostics.
Engine Performance
• Have a professional mechanic diagnose and repair the issue.
• Avoid driving the vehicle if performance issues are severe.
Check your vehicle's warranty for coverage on fuel injectors and related components.
This code is relatively uncommon and typically associated with high-performance or specialized engines with more than eight cylinders.
Moderate – Address the issue soon to prevent further engine performance problems.
Driving with a faulty injector can lead to increased emissions and may not meet legal emissions standards.
• Engine running
• Vehicle at operating temperature
The high-pressure injector for cylinder 11 is located on the engine, typically near the intake manifold.
Q: Can I drive with a P3179 code?
A: It's not recommended to drive with this code as it can lead to engine performance issues and increased emissions.
Q: How do I know if my injector is faulty?
A: Symptoms like misfires, poor fuel economy, and a check engine light can indicate a faulty injector.
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Network faults often require full-system access instead of a generic code reader alone.
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Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.
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Universal · Wire connectors and repair kit
Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
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Fitment Required · Vehicle-fitment part
Commonly relevant for misfire, ignition-efficiency, and some drivability-related repairs.
Misfire and ignition-related faults commonly involve spark plugs as part of the repair path.
Check the correct plug type, gap, and engine application for your vehicle.
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Fitment Required · Vehicle-fitment part
Relevant when the fault points toward ignition-coil performance or cylinder-specific ignition issues.
Some ignition faults involve coil performance or cylinder-specific coil problems.
Match the coil to your engine and confirm the failed component before ordering.
View options on AmazonThese parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.