P0202 2017 GMC Sierra Code - Cylinder 2 Injector Control Circuit
Quick Answer
The Engine Control Module (ECM) supplies voltage to each fuel injector on the high control circuits. Common causes include Faulty Fuel Injector 2, Fuel Injector 2 harness is open or shorted, Fuel Injector 2 circuit poor electrical connection. 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
- P0202 2017 GMC Sierra indicates Cylinder 2 Injector Control Circuit.
- Common causes
- Common causes include Faulty Fuel Injector 2, Fuel Injector 2 harness is open or shorted, Fuel Injector 2 circuit poor electrical connection.
- 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.
Code P0202 2017 GMC Sierra Description
What are the Possible Causes of the DTC P0202 2017 GMC Sierra?
- Faulty Fuel Injector 2
- Fuel Injector 2 harness is open or shorted
- Fuel Injector 2 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0202 2017 GMC Sierra?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0202 2017 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0202 2017 GMC Sierra Code
1. What does the OBDII code P0202 mean on a 2017 GMC Sierra?
P0202 indicates an issue in the cylinder 2 injector control circuit, meaning the engine control module (ECM) is detecting a malfunction in the electrical signal or operation of the fuel injector for cylinder 2.
2. What are the common symptoms of code P0202 in a 2017 GMC Sierra?
Symptoms may include rough idling, reduced engine performance, misfires, poor fuel economy, or the check engine light turning on.
3. What causes the P0202 code to appear on a 2017 GMC Sierra?
Common causes include a faulty fuel injector, damaged wiring or connectors in the injector circuit, a malfunctioning ECM, or corrosion in the circuit.
4. Can I drive my 2017 GMC Sierra with a P0202 code?
It is not recommended to drive for an extended period with this code, as it can lead to further engine damage, reduced performance, and lower fuel efficiency.
5. How do I diagnose code P0202 on a 2017 GMC Sierra?
Diagnosis typically involves checking the wiring and connectors for cylinder 2, testing the fuel injector for proper operation, and verifying that the ECM is functioning correctly.
6. How do I fix a P0202 code on my 2017 GMC Sierra?
Repairs may include replacing the cylinder 2 fuel injector, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the ECM if necessary.
7. What tools are needed to troubleshoot P0202 on a 2017 GMC Sierra?
You’ll need an OBDII scanner, a multimeter for testing electrical components, and possibly a noid light to check injector pulse signals.
8. How much does it cost to repair a P0202 code on a 2017 GMC Sierra?
The cost depends on the issue. Replacing a fuel injector can cost $200–$400, while fixing wiring or connectors may cost less. ECM replacement can be significantly more expensive.
9. Can a P0202 code clear itself on a 2017 GMC Sierra?
The code may clear temporarily if the issue is intermittent, but it will likely return until the underlying problem is resolved.
10. What happens if I ignore the P0202 code on my 2017 GMC Sierra?
Ignoring the code can lead to more severe engine problems, decreased performance, increased emissions, and potential damage to other components like the catalytic converter.
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