P0204 2018 GMC Sierra Code - Cylinder 4 Injector Control Circuit
Quick Answer
The P0204 code on a 2018 GMC Sierra indicates a problem with the cylinder 4 injector control circuit. Common causes include Faulty fuel injector for cylinder 4, Wiring or connector issues in the injector control circuit, ECM malfunction. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0204 2018 GMC Sierra indicates Cylinder 4 Injector Control Circuit.
- Common causes
- Common causes include Faulty fuel injector for cylinder 4, Wiring or connector issues in the injector control circuit, ECM malfunction.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P0204 2018 GMC Sierra Description
The P0204 code on a 2018 GMC Sierra indicates a problem with the cylinder 4 injector control circuit. This means that there is an issue with the electrical circuit that controls the fuel injector for cylinder 4. The fuel injector is responsible for delivering the precise amount of fuel into the combustion chamber at the right time, and any malfunction in this circuit can lead to poor engine performance, decreased fuel efficiency, and potential engine misfires.
Common Causes of P0204 2018 GMC Sierra
- Faulty fuel injector for cylinder 4
- Wiring or connector issues in the injector control circuit
- ECM malfunction
- Fuel delivery problems
- Poor fuel quality
Symptoms of P0204 2018 GMC Sierra
- Rough idling or engine misfires
- Decreased fuel efficiency
- Engine stalling or hesitation
- Check Engine Light illuminated
- Loss of power or acceleration
How to Fix P0204 2018 GMC Sierra
- Diagnose the issue by performing a thorough inspection of the injector, wiring, and connectors.
- Test the fuel injector for proper operation using a multimeter.
- Repair or replace any damaged wiring or connectors in the circuit.
- Replace the faulty fuel injector if needed.
- Clear the code from the ECM and perform a test drive to ensure the issue is resolved.
Cost to Fix P0204 2018 GMC Sierra
The cost of repairing a P0204 code on a 2018 GMC Sierra can vary depending on the specific cause of the issue. On average, the cost of replacing a fuel injector can range from $150 to $300 per injector, including parts and labor. Additional costs may apply if wiring or connectors need to be repaired or replaced. Overall, the total repair cost for this issue could range from $200 to $500, but it's important to get a detailed estimate from a qualified mechanic based on the specific diagnosis and repair needed for your vehicle.
Need more information about the P0204 2018 GMC Sierra code?
Need more information on how to fix the P0204 2018 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0204 2018 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0204 2018 GMC Sierra Code
No Frequently Asked Questions about P0204 2018 GMC Sierra Code found.
Discuss the causes and fixes for P0204 2018 GMC Sierra OBDII Code
Code P0204 2018 GMC Sierra comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.