P02E9 2017 GMC Sierra Code - Diesel Intake Air Flow Position Sensor Circuit High
Quick Answer
The Throttle Body Assembly contains a contact-less inductive throttle position sensing element that is managed by a customized integrated circuit. Common causes include Faulty Throttle Body Assembly, Throttle Body Assembly harness is open or shorted, Throttle Body Assembly 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
- P02E9 2017 GMC Sierra indicates Diesel Intake Air Flow Position Sensor Circuit High.
- Common causes
- Common causes include Faulty Throttle Body Assembly, Throttle Body Assembly harness is open or shorted, Throttle Body Assembly 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 P02E9 2017 GMC Sierra Description
What are the Possible Causes of the DTC P02E9 2017 GMC Sierra?
- Faulty Throttle Body Assembly
- Throttle Body Assembly harness is open or shorted
- Throttle Body Assembly circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P02E9 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 P02E9 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 P02E9 2017 GMC Sierra Code
1. What does the OBDII code P02E9 mean on a 2017 GMC Sierra?
The code P02E9 indicates a "Diesel Intake Air Flow Position Sensor Circuit High," meaning the sensor is detecting a higher-than-expected voltage in the intake air flow position circuit.
2. What are the common symptoms of the P02E9 code in a 2017 GMC Sierra?
Symptoms may include reduced engine performance, poor fuel efficiency, difficulty starting, a check engine light, and potentially limp mode activation.
3. What causes the P02E9 code to appear on a 2017 GMC Sierra?
Common causes include a faulty intake air flow position sensor, wiring issues like shorts or open circuits, corrosion on connectors, or a malfunctioning engine control module (ECM).
4. Can I drive my 2017 GMC Sierra with the P02E9 code?
While the vehicle may still be drivable, it is not recommended as it can lead to reduced performance, further damage to the engine, or increased emissions.
5. How do I diagnose the P02E9 code on a 2017 GMC Sierra?
Diagnosis involves using a scan tool to confirm the code, inspecting the intake air flow position sensor, checking for damaged wiring or connectors, and testing the sensor's voltage readings.
6. How can I fix the P02E9 code on my 2017 GMC Sierra?
Repairs may include replacing the intake air flow position sensor, repairing or replacing damaged wiring, cleaning or reconnecting corroded connectors, or reprogramming/updating the ECM.
7. How much does it cost to repair the P02E9 code on a 2017 GMC Sierra?
Depending on the issue, repairs can range from $100 to $300 for a sensor replacement or wiring fix, while ECM-related repairs may cost more.
8. Can a dirty air filter cause the P02E9 code on a 2017 GMC Sierra?
A dirty air filter is unlikely to directly cause this code, but restricted airflow can lead to other issues that may affect the intake air flow sensor.
9. Does the P02E9 code always require sensor replacement on a 2017 GMC Sierra?
No, the issue could be related to wiring, connectors, or the ECM, so proper diagnosis is crucial before replacing the sensor.
10. Will clearing the P02E9 code fix the problem on a 2017 GMC Sierra?
Clearing the code may temporarily turn off the check engine light, but the underlying issue must be resolved to prevent the code from returning.
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