AutoCodes – Chevrolet – P02E8 2015 Chevrolet Silverado

P02E8 2015 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 2015 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 477

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 2015 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 2015 Chevrolet Silverado - Diesel Intake Air Flow Position Sensor Circuit Low - AutoCodes.com — P02E8 2015 Chevrolet Silverado Code - Diesel Intake Air Flow Position Sensor Circuit Low

What does this mean?

What are the Possible Causes of the DTC P02E8 2015 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 2015 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 2015 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 2015 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 2015 Chevrolet Silverado Code

1. What does the OBDII code P02E8 mean on a 2015 Chevrolet Silverado?

P02E8 indicates a problem with the Diesel Intake Air Flow Position Sensor Circuit, specifically that the circuit voltage is lower than expected.

2. What are the common symptoms of a P02E8 code?

Symptoms may include reduced engine performance, poor fuel economy, rough idling, or the Check Engine Light being illuminated.

3. What causes the P02E8 code on a 2015 Chevrolet Silverado?

Possible causes include a faulty Diesel Intake Air Flow Position Sensor, damaged wiring or connectors, or a malfunctioning engine control module (ECM).

4. Can I drive my 2015 Silverado with a P02E8 code?

While the vehicle may still be drivable, ignoring the issue could lead to reduced performance, increased emissions, or further damage to the engine.

5. How do I diagnose a P02E8 code?

Start by inspecting the sensor, wiring, and connectors for damage or corrosion. Use a multimeter to check for proper voltage and continuity in the circuit. Perform a scan with an OBDII tool to confirm the issue.

6. How is the P02E8 code fixed?

Repairs may include replacing the Diesel Intake Air Flow Position Sensor, repairing or replacing damaged wiring, or reprogramming or replacing the ECM if necessary.

7. How much does it cost to fix the P02E8 code?

The cost varies depending on the repair, but replacing the sensor typically costs $100â€“$300 for parts and labor. Wiring or ECM repairs may cost more.

8. Can a dirty air filter cause a P02E8 code?

While not a direct cause, a clogged air filter can reduce airflow, potentially contributing to sensor issues. Replacing the air filter might help in some cases.

9. Is the Diesel Intake Air Flow Position Sensor the same as the Mass Airflow (MAF) Sensor?

No, they are different sensors. The Diesel Intake Air Flow Position Sensor monitors the position of the intake air valve, while the MAF sensor measures the air entering the engine.

10. Do I need to clear the code after repairs?

Yes, after completing repairs, use an OBDII scanner to clear the code and verify that it does not return during a test drive.