Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
One of the parts that sprays fuel into the engine is stuck open, letting too much fuel in.
The code P3058 indicates that the engine control module (ECM) has detected that the injector for cylinder 12 is stuck in the open position, allowing fuel to continuously flow into the cylinder.
Fuel injectors are responsible for delivering the right amount of fuel into the engine's cylinders. When injector 12 is stuck open, it means fuel is being injected continuously, which can lead to engine flooding, poor performance, and increased emissions. The ECM monitors the injector circuit and detects if the injector is not functioning as expected.
• Poor engine performance
• Increased fuel consumption
• Engine misfires
• Faulty fuel injector
• Wiring issues in the injector circuit
• ECM malfunction
ECM: Engine Control Module
Injector: A device that sprays fuel into the engine's cylinders
• Connect a diagnostic scanner to check for stored codes and freeze frame data.
• Inspect the wiring and connectors for injector 12 for damage or corrosion.
• Test the injector's resistance and operation using a multimeter.
• Replace the faulty injector.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Fuel injector puller
$200 - $500
Moderate
• Vehicle 1
• Vehicle 2
• Vehicle 3
• Regular maintenance and inspection of the fuel system.
• Use quality fuel to prevent injector clogging.
• Replace fuel filters as recommended.
Engine Performance
• Avoid driving the vehicle until the issue is resolved to prevent engine damage.
• Consult a professional mechanic for accurate diagnosis and repair.
Check with your vehicle manufacturer for warranty coverage on fuel system components.
This code has been associated with vehicles experiencing injector issues due to poor fuel quality or lack of maintenance.
High – This issue can lead to severe engine damage if not addressed promptly.
Operating a vehicle with this issue can result in increased emissions and may not comply with emissions regulations.
• Engine at operating temperature
• Vehicle in idle state
Injector 12 is located on the engine, typically near the intake manifold for cylinder 12.
Q: Can I drive my car with a P3058 code?
A: It's not recommended to drive with this code as it can cause engine damage.
Q: How can I prevent injector issues?
A: Regular maintenance and using quality fuel can help prevent injector problems.
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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.