AutoCodes – GMC – P020E 2017 GMC Sierra

P020E 2017 GMC Sierra Code - Cylinder 5 Injection Timing

Quick Answer

The Engine Control Module (ECM) has the ability to learn injector timing performance. Common causes include Faulty Fuel Injector 5, Fuel Injector 5 harness is open or shorted, Fuel Injector 5 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: P020E 2017 GMC Sierra indicates Cylinder 5 Injection Timing.
Common causes: Common causes include Faulty Fuel Injector 5, Fuel Injector 5 harness is open or shorted, Fuel Injector 5 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 306

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 22, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P020E 2017 GMC Sierra Description

The Engine Control Module (ECM) has the ability to learn injector timing performance. When the engine is at operating temperature, throttle closed and in deceleration fuel cut-off mode, the ECM will pulse each injector individually and measure the changes in rotational speed of the crankshaft using the input from the crankshaft position sensor. The ECM will run this diagnostic at one fuel rail pressure operating point for each injector. The ECM stores the injector timing value. The Diagnostic Trouble Code (DTC) will be set when the time to build up sufficient current to open the injector is below or above a predetermined threshold.

OBDII Code P020E 2017 GMC Sierra - Cylinder 5 Injection Timing - AutoCodes.com — P020E 2017 GMC Sierra Code - Cylinder 5 Injection Timing

What does this mean?

What are the Possible Causes of the DTC P020E 2017 GMC Sierra?

Faulty Fuel Injector 5
Fuel Injector 5 harness is open or shorted
Fuel Injector 5 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P020E 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 P020E 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.

Need more information about the P020E 2017 GMC Sierra code?

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Need Help with the 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 P020E 2017 GMC Sierra Code

1. What does OBDII code P020E on a 2017 GMC Sierra indicate?

Code P020E specifically points to an issue with the injection timing for cylinder 5 on the GMC Sierra.

2. What are the common symptoms of OBDII code P020E in a 2017 GMC Sierra?

Common symptoms include rough idling, engine misfires, decreased fuel efficiency, and potentially the illumination of the check engine light.

3. What are the possible causes of OBDII code P020E in a 2017 GMC Sierra?

Causes may include a faulty fuel injector for cylinder 5, wiring issues in the fuel injector circuit, or problems with the engine control module (ECM).

4. How can I diagnose the OBDII code P020E on my 2017 GMC Sierra?

Diagnosis typically involves using an OBDII scanner to read the code, conducting a visual inspection of the fuel injector and related wiring, and performing tests to check the fuel injector's performance.

5. Can I still drive my 2017 GMC Sierra with OBDII code P020E?

It's generally not recommended to drive the vehicle with a P020E code as it can lead to further engine damage and potential safety hazards. It's best to address the issue promptly.

6. How can I repair OBDII code P020E on my 2017 GMC Sierra?

Repair options may include replacing the fuel injector for cylinder 5, repairing any damaged wiring, or reprogramming the engine control module. It's advisable to consult a professional mechanic for proper diagnosis and repair.

7. Will resetting the check engine light resolve OBDII code P020E on a 2017 GMC Sierra?

Simply resetting the check engine light will not fix the underlying issue causing the P020E code. It's important to diagnose and repair the problem to prevent it from reoccurring.

8. Is OBDII code P020E in a 2017 GMC Sierra a serious problem?

While the severity can vary, it's important to address code P020E promptly to prevent potential engine damage and ensure the vehicle operates efficiently.

9. Can a DIY enthusiast fix OBDII code P020E on a 2017 GMC Sierra?

Some aspects of addressing code P020E may be within the capabilities of a DIY enthusiast, such as inspecting wiring connections. However, diagnosing and repairing the root cause may require specialized tools and expertise.

10. How much does it typically cost to repair OBDII code P020E on a 2017 GMC Sierra?

The cost of repairing code P020E can vary depending on the specific issue causing the code, the labor rates in your area, and whether you choose to address the problem yourself or seek professional assistance.