AutoCodes – Chevrolet – P02E8 2017 Chevrolet Silverado

P02E8 2017 Chevrolet Silverado Code - Diesel Intake Air Flow Position Sensor Circuit Low

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: P02E8 2017 Chevrolet Silverado indicates Diesel Intake Air Flow Position Sensor Circuit Low.
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.

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Code Popularity 459

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Jun 10, 2022

Description
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code P02E8 2017 Chevrolet Silverado Description

The Throttle Body Assembly contains a contact-less inductive throttle position sensing element that is managed by a customized integrated circuit. The throttle position sensor is mounted within the throttle body assembly and is not serviceable. The Engine Control Module (ECM) supplies the throttle body with a 5 V reference circuit, a low reference circuit. The asynchronous signal means communication is only going from the throttle body to the ECM. The throttle body cannot receive data from the ECM over the signal/serial data circuit. The throttle position sensor provides a signal voltage that changes relative to throttle blade angle. The throttle position sensor information is transmitted between the throttle body and the ECM on the signal/serial data circuit. The ECM decodes the serial data signal and is used as voltages for throttle position sensor 1 and 2. The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the throttle valve position sensor SENT signal voltage is less than a calibrated threshold for 0.5 s.

OBDII Code P02E8 2017 Chevrolet Silverado - Diesel Intake Air Flow Position Sensor Circuit Low - AutoCodes.com — P02E8 2017 Chevrolet Silverado Code - Diesel Intake Air Flow Position Sensor Circuit Low

What does this mean?

What are the Possible Causes of the DTC P02E8 2017 Chevrolet Silverado?

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 P02E8 2017 Chevrolet Silverado?

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 does this mean?

Code Tech Notes

User Submitted Video

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P02E8 2017 Chevrolet Silverado 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 P02E8 2017 Chevrolet Silverado 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 P02E8 2017 Chevrolet Silverado Code

1. What does the OBDII code P02E8 mean on a 2017 Chevrolet Silverado?

The P02E8 code indicates a "Diesel Intake Air Flow Position Sensor Circuit Low," meaning the sensor is detecting a lower-than-expected voltage in the intake air flow control system.

2. What are the symptoms of code P02E8 in a 2017 Chevrolet Silverado?

Symptoms may include reduced engine performance, poor throttle response, black smoke from the exhaust, and the check engine light being illuminated.

3. What causes the P02E8 code to trigger on a 2017 Chevrolet Silverado?

Common causes include a faulty intake air flow position sensor, wiring issues like damaged or corroded connectors, or a malfunctioning intake air flow control valve.

4. Can I drive my 2017 Chevrolet Silverado with the P02E8 code?

Driving with this code is not recommended as it may lead to reduced fuel efficiency, increased emissions, and potential damage to the engine or exhaust system.

5. How do I diagnose the P02E8 code on a 2017 Chevrolet Silverado?

Diagnose the code by using an OBDII scanner to confirm the fault, inspecting the intake air flow position sensor and its wiring, and checking for any blockages in the intake system.

6. How do I fix the P02E8 code on a 2017 Chevrolet Silverado?

Repairs may involve replacing the intake air flow position sensor, repairing damaged wiring or connectors, or cleaning/replacing the intake air flow control valve if it is stuck or malfunctioning.

7. How much does it cost to repair the P02E8 code on a 2017 Chevrolet Silverado?

Repair costs can vary, but replacing the intake air flow position sensor typically ranges from $150 to $300, including parts and labor.

8. Can a dirty air filter cause the P02E8 code in a 2017 Chevrolet Silverado?

While a dirty air filter alone is unlikely to cause the P02E8 code, it can contribute to reduced airflow, which may exacerbate issues in the intake system.

9. Is the P02E8 code related to other codes in the 2017 Chevrolet Silverado?

Yes, the P02E8 code may appear alongside other codes related to the intake air flow or emissions system, such as codes related to the mass air flow (MAF) sensor or EGR system.

10. How can I prevent the P02E8 code from occurring in my 2017 Chevrolet Silverado?

Regular maintenance, such as inspecting the intake system, ensuring wiring connections are secure, and replacing air filters as needed, can help prevent this code from occurring.