AutoCodes – GMC – P0202 2014 GMC Sierra

P0202 2014 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 2014 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.

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Code Popularity 260

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 23, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0202 2014 GMC Sierra Description

The Engine Control Module (ECM) supplies voltage to each fuel injector on the high control circuits. The ECM energizes each fuel injector by grounding the low control circuit of the fuel injector. The ECM monitors the status of the fuel injector circuits. When a fuel injector circuit condition is detected by the ECM, the affected fuel injector(s) is disabled. The Diagnostic Trouble Code (DTC) will be set when the ECM detects the fuel injector control circuit is open for greater than 2 s.

OBDII Code P0202 2014 GMC Sierra - Cylinder 2 Injector Control Circuit - AutoCodes.com — P0202 2014 GMC Sierra Code - Cylinder 2 Injector Control Circuit

What does this mean?

What are the Possible Causes of the DTC P0202 2014 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 2014 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 2014 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.

Need more information about the P0202 2014 GMC Sierra code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0202 2014 GMC Sierra Code

1. What does the OBDII code P0202 mean on a 2014 GMC Sierra?

P0202 indicates a fault in the injector control circuit for cylinder 2, meaning the engine's computer is detecting an issue with the fuel injector's electrical circuit.

2. What are the common symptoms of the P0202 code on a 2014 GMC Sierra?

Symptoms may include a rough idle, misfiring, reduced engine performance, poor fuel economy, and the check engine light being illuminated.

3. What causes the P0202 code on a 2014 GMC Sierra?

Common causes include a faulty fuel injector, damaged wiring or connectors in the injector circuit, a bad PCM (Powertrain Control Module), or corrosion in the circuit.

4. Can the P0202 code damage my 2014 GMC Sierra if left unrepaired?

Yes, continued driving with this code can lead to engine misfires, increased emissions, and potential damage to other engine components over time.

5. How do I diagnose the P0202 code on my 2014 GMC Sierra?

Start by inspecting the wiring and connectors for cylinder 2's injector for damage or corrosion. Then, test the injector for proper resistance and use a scan tool to monitor live data.

6. How do I fix the P0202 code on a 2014 GMC Sierra?

Repairs may include replacing the cylinder 2 fuel injector, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the PCM if necessary.

7. Can a bad PCM cause the P0202 code on a 2014 GMC Sierra?

Yes, while rare, a faulty PCM can cause this code if it fails to properly control the injector circuit for cylinder 2.

8. How much does it cost to fix the P0202 code on a 2014 GMC Sierra?

Repair costs vary but typically range from $150 to $500, depending on whether the issue is a simple wiring repair or requires replacing the fuel injector or PCM.

9. Can I drive my 2014 GMC Sierra with the P0202 code?

Itâ€™s not recommended, as driving with this issue can lead to poor performance, increased emissions, and potential engine damage.

10. How can I prevent the P0202 code from reoccurring on my 2014 GMC Sierra?

Regular maintenance, including inspecting and cleaning fuel injector connections and ensuring the wiring is in good condition, can help prevent this issue.