P02E0 2017 GMC Sierra Code - Intake Air Flow Valve Control Circuit
Quick Answer
The intake airflow valve of diesel engines reduces the intake air flow rate in part-load operation so that a higher exhaust gas recirculation rate can be achieved. 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
- P02E0 2017 GMC Sierra indicates Intake Air Flow Valve Control Circuit.
- 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 P02E0 2017 GMC Sierra Description
The Intake airflow valve assembly contains a contactless inductive throttle position sensing element that is managed by a customized integrated circuit. The valve position sensor is mounted within the valve body assembly and is not serviceable. The Engine Control Module (ECM) supplies the valve body with a 5 V reference circuit, a low reference circuit, an H-bridge motor directional control circuit, and an asynchronous signal/serial data circuit. The asynchronous signal means communication is only going from the intake airflow valve to the ECM. The Intake Air Flow Valve cannot receive data from the ECM over the signal/serial data circuit. The valve position sensor provides a signal voltage that changes relative to the valve blade angle. The valve position sensor information is transmitted between the Intake Air Flow Valve and the ECM on the signal/serial data circuit.
The valve may also be used to shut down the engine by closing the intake airflow valve and disabling the fuel injectors if the control module detects the engine speed is beyond the desired control limits. The Diagnostic Trouble Code (DTC) will be set if the ECM detects an open circuit condition of the intake airflow valve control circuit.
What are the Possible Causes of the DTC P02E0 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 P02E0 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 P02E0 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 P02E0 2017 GMC Sierra Code
1. What does the OBDII code P02E0 mean on a 2017 GMC Sierra?
P02E0 indicates an issue with the Intake Air Flow Valve Control Circuit, which monitors and controls the air entering the engine for optimal performance.
2. What are the common symptoms of a P02E0 code in a 2017 GMC Sierra?
Symptoms may include rough idling, decreased fuel efficiency, poor engine performance, or an illuminated check engine light.
3. What causes the P02E0 code to appear in a GMC Sierra?
Common causes include a malfunctioning intake air flow valve, damaged wiring or connectors in the circuit, or a faulty powertrain control module (PCM).
4. Can I drive my 2017 GMC Sierra with a P02E0 code?
While it may be possible to drive, it is not recommended as the issue could lead to reduced engine performance and possible damage over time.
5. How do I diagnose the P02E0 code on my GMC Sierra?
Diagnose the code by visually inspecting the intake air flow valve, checking the wiring and connectors for damage, and using a scan tool to monitor the valve's operation.
6. How do I fix the P02E0 code on a 2017 GMC Sierra?
Repairs may include replacing the intake air flow valve, repairing damaged wiring or connectors, or reprogramming or replacing the PCM if necessary.
7. What tools are needed to fix a P02E0 code?
You may need a diagnostic scan tool, multimeter for electrical testing, and basic hand tools for part replacement.
8. Is the P02E0 code specific to GMC Sierra trucks?
No, the P02E0 code can appear in other vehicles as well, but the repair steps and symptoms may vary between makes and models.
9. How much does it cost to repair a P02E0 code on a GMC Sierra?
The cost depends on the exact issue but typically ranges from $100 to $500, depending on whether the intake air flow valve or related components need replacement.
10. Can a dirty air filter cause the P02E0 code in a 2017 GMC Sierra?
A dirty air filter is unlikely to directly cause the P02E0 code, but it can contribute to airflow issues that may exacerbate the problem. Always check and replace the air filter if necessary.
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