AutoCodes – Chevrolet – P1414 2018 Chevrolet Silverado

P1414 2018 Chevrolet Silverado Code - Exhaust Gas Recirculation Cooler Bypass Valve Current Performance

Quick Answer

The Engine Control Module (ECM) uses the Exhaust Gas Recirculation (EGR) bypass valve position sensor to determine the position of the bypass valve. Common causes include Faulty Exhaust Gas Recirculation (EGR) Cooler Bypass Valve, Exhaust Gas Recirculation Cooler Bypass Valve harness is open or shorted, Exhaust Gas Recirculation Cooler Bypass Valve 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
P1414 2018 Chevrolet Silverado indicates Exhaust Gas Recirculation Cooler Bypass Valve Current Performance.
Common causes
Common causes include Faulty Exhaust Gas Recirculation (EGR) Cooler Bypass Valve, Exhaust Gas Recirculation Cooler Bypass Valve harness is open or shorted, Exhaust Gas Recirculation Cooler Bypass Valve 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 237
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 30, 2022
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Code P1414 2018 Chevrolet Silverado Description

The Engine Control Module (ECM) uses the Exhaust Gas Recirculation (EGR) bypass valve position sensor to determine the position of the bypass valve. The ECM sends a reference voltage through the 5-volt reference circuit to the position sensor. The ECM provides a voltage return path for the sensor through the low reference circuit. A variable voltage signal, based on the valve position, is sent from the sensor to the ECM through the position sensor signal circuit. The ECM compares the actual bypass valve position with the desired bypass valve position when the valve is commanded open or closed. The EGR cooler bypass valve is controlled by the ECM through the bypass valve motor high control and the low control circuits. The ECM will pulse width modulate the low control circuit to ground when EGR cooler bypass is desired.
The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the EGR cooler bypass valve control circuit current is greater than a calibrated threshold for greater than 3 s.
OBDII Code P1414 2018 Chevrolet Silverado - Exhaust Gas Recirculation Cooler Bypass Valve Current Performance - AutoCodes.com
P1414 2018 Chevrolet Silverado Code - Exhaust Gas Recirculation Cooler Bypass Valve Current Performance

What are the Possible Causes of the DTC P1414 2018 Chevrolet Silverado?

  • Faulty Exhaust Gas Recirculation (EGR) Cooler Bypass Valve
  • Exhaust Gas Recirculation Cooler Bypass Valve harness is open or shorted
  • Exhaust Gas Recirculation Cooler Bypass Valve circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P1414 2018 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1414 2018 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 P1414 2018 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 P1414 2018 Chevrolet Silverado Code

1. What does the OBDII code P1414 mean on a 2018 Chevrolet Silverado?

P1414 indicates an issue with the Exhaust Gas Recirculation (EGR) cooler bypass valve's performance, often related to its current or position not matching expected values.

2. What are the common symptoms of code P1414 on a Chevrolet Silverado?

Symptoms include a Check Engine Light, reduced engine performance, increased emissions, higher engine temperatures, or unusual exhaust odors.

3. What causes code P1414 on the 2018 Chevrolet Silverado?

Common causes include a faulty EGR cooler bypass valve, wiring or connector issues, carbon buildup in the EGR system, or a malfunctioning EGR position sensor.

4. Can code P1414 cause damage if left unresolved?

Yes, ignoring this code can lead to increased emissions, reduced fuel efficiency, and potential engine overheating due to improper exhaust gas recirculation.

5. How is P1414 diagnosed on a Chevrolet Silverado?

A technician typically uses a scan tool to verify the code, inspects the EGR bypass valve and wiring, checks for carbon buildup, and tests the related sensors and circuits.

6. Can I drive my Silverado with a P1414 code?

While the vehicle may still be drivable, it is not recommended, as continued driving could cause engine inefficiency or further damage to the EGR system.

7. How is P1414 repaired on a 2018 Chevrolet Silverado?

Repairs may include cleaning or replacing the EGR cooler bypass valve, repairing damaged wiring or connectors, and clearing any carbon buildup in the EGR system.

8. How much does it cost to fix code P1414 on a Chevrolet Silverado?

The repair cost varies but typically ranges from $150 to $600, depending on whether cleaning, sensor replacement, or bypass valve replacement is required.

9. Does code P1414 require reprogramming of the ECU?

In most cases, reprogramming the ECU is not required, but the code must be cleared after repairs to ensure the issue is resolved.

10. Can a dirty EGR system trigger code P1414 on a Silverado?

Yes, carbon buildup in the EGR system can restrict valve movement, causing performance issues and triggering the P1414 code.

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