AutoCodes – Generic – P1004

P1004 Code - Short Runner Valve Control Performance

Quick Answer

The Short Runner Valve (SRV) system is used to improve engine performance. Common causes include Faulty short runner valve assembly, Short runner valve harness is open or shorted, Short runner 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: P1004 indicates Short Runner Valve Control Performance.
Common causes: Common causes include Faulty short runner valve assembly, Short runner valve harness is open or shorted, Short runner 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 20,896

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 12, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1004 Description

The Short Runner Valve (SRV) system is used to improve engine performance. The SRV system allows the intake charge air to bypass the long intake manifold runners between the intake manifold plenum and the intake manifold interface to the cylinder heads by providing a shorter runner directly between the plenum and the cylinder head interface The SRV position is controlled by a pneumatic/spring actuator and electronic solenoid valve. The Powertrain Control Module (PCM) compares the circuit feedback to calibrated closed range when the circuit is deenergized or to a calibrated open range when the circuit is energized.

OBDII Code P1004 - Short Runner Valve Control Performance - AutoCodes.com — P1004 Code - Short Runner Valve Control Performance

What does this mean?

What are the Possible Causes of the DTC P1004?

Faulty short runner valve assembly
Short runner valve harness is open or shorted
Short runner valve circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P1004?

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 P1004 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 P1004 code?

Need more information on how to fix the P1004 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1004 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1004 BMW — Valvetronic Guiding Eccentric Shaft Sensor Solenoid Loss
P1004 Buick — NOx Sensor 2 Slow Response
P1004 Cadillac — NOx Sensor 2 Slow Response
P1004 Chevrolet — NOx Sensor 2 Slow Response
P1004 Chrysler — Short Runner Valve Control Performance
P1004 Dodge — Short Runner Valve Control Performance
P1004 GMC — NOx Sensor 2 Slow Response
P1004 Jeep — Short Runner Valve Control Performance
P1004 MINI — Valvetronic Guiding Eccentric Shaft Sensor Solenoid Loss
P1004 RAM — Short Runner Valve Control Performance
P1004 Volkswagen — Torque Difference Cylinder 1: Limit Value Exceeded

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 P1004 Code

1. What are the common symptoms of OBDII code P1004 (Short Runner Valve Control Performance)?

- Common symptoms include rough idling, decreased engine performance, and potential stalling of the vehicle.

2. What are the possible causes of OBDII code P1004?

- The code P1004 may be triggered by issues such as a faulty short runner valve control solenoid, wiring problems, vacuum leaks, or a defective short runner valve.

3. How can I diagnose the cause of OBDII code P1004?

- To diagnose the issue, you can perform a visual inspection of the short runner valve components, check for vacuum leaks, test the short runner valve control solenoid, and use an OBDII scanner to gather more information.

4. Can I drive my vehicle with OBDII code P1004?

- It is not recommended to drive your vehicle for an extended period with code P1004 as it can lead to further engine damage and potential safety issues.

5. How can I repair OBDII code P1004?

- Repairing code P1004 typically involves replacing the faulty short runner valve control solenoid, repairing any wiring issues, fixing vacuum leaks, or replacing the short runner valve if necessary.

6. Will resetting the OBDII code P1004 make it go away permanently?

- Resetting the code may temporarily turn off the check engine light, but if the underlying issue is not addressed, the code is likely to return.

7. How much does it cost to repair OBDII code P1004?

- The cost of repairing code P1004 can vary depending on the specific issue causing the code and the labor rates in your area. It is recommended to get a diagnostic from a professional technician for an accurate estimate.

8. Can a DIY enthusiast fix OBDII code P1004 at home?

- Depending on your level of automotive expertise, you may be able to address some of the common causes of code P1004 at home, such as checking for vacuum leaks or inspecting wiring. However, more complex repairs may require professional assistance.

9. Is it safe to ignore OBDII code P1004?

- Ignoring code P1004 can lead to reduced engine performance, potential stalling, and increased fuel consumption. It is best to address the issue promptly to avoid further damage.

10. Can OBDII code P1004 affect my vehicle's emissions?

- Yes, code P1004 can affect your vehicle's emissions by causing the engine to run inefficiently, potentially leading to increased emissions output. It is important to address the code to ensure your vehicle meets emissions standards.