AutoCodes – Infiniti – P2004 Infiniti

P2004 Infiniti Code - Tumble Control Valve Stuck

Quick Answer

Tumble control valve is installed in the intake manifold adapter. Common causes include Faulty Tumble control valve actuator, Faulty Tumble control valve motor, Faulty Tumble control valve position sensor. 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: P2004 Infiniti indicates Tumble Control Valve Stuck.
Common causes: Common causes include Faulty Tumble control valve actuator, Faulty Tumble control valve motor, Faulty Tumble control valve position sensor.
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 5,821

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 Apr 27, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2004 Infiniti Description

Tumble control valve is installed in the intake manifold adapter. Tumble control valve actuator is connected to the front end of the valve shaft. Tumble control valve actuator consists of motor and position sensor, etc. The motor opens or closes the valve by the output signal of the Engine Control Module (ECM). The sensor consists of a permanent magnet and Hall IC. It senses the valve shaft movement and feeds the voltage signals to the ECM.
1-Intake manifold adapter
2-Tumble control valve actuator
3-Tumble control valve

OBDII Code P2004 Infiniti - Tumble Control Valve Stuck - AutoCodes.com — P2004 Infiniti Code - Tumble Control Valve Stuck

What does this mean?

What are the Possible Causes of the DTC P2004 Infiniti?

Faulty Tumble control valve actuator
Faulty Tumble control valve motor
Faulty Tumble control valve position sensor
Faulty Accelerator pedal position sensor (APP sensor 2)
Faulty Crankshaft position sensor (POS)
Faulty EVAP control system pressure sensor
Faulty Refrigerant pressure sensor

How to Fix the DTC P2004 Infiniti?

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 P2004 Infiniti 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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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 P2004 Infiniti Code

1. What does the OBDII code P2004 mean on an Infiniti?

P2004 indicates that the Powertrain Control Module (PCM) has detected that the tumble control valve (TCV) is stuck in the open position.

2. What are the common symptoms of a P2004 code in an Infiniti?

Symptoms may include reduced engine performance, poor fuel economy, rough idling, hesitation during acceleration, and an illuminated Check Engine Light.

3. What causes the tumble control valve to get stuck?

Common causes include carbon buildup on the valve, a faulty tumble control valve actuator, damaged wiring or connectors, or a malfunctioning PCM.

4. Can I drive my Infiniti with a P2004 code?

While the vehicle may still be drivable, it is not recommended to ignore the issue as it can lead to reduced performance and potential engine damage over time.

5. How is the P2004 code diagnosed?

A technician will use a scan tool to confirm the code, inspect the tumble control valve and actuator for damage or carbon buildup, and check for wiring or electrical issues.

6. What are the possible repairs for fixing a P2004 code?

Repairs may include cleaning or replacing the tumble control valve, repairing or replacing damaged wiring, replacing a faulty actuator, or updating/reprogramming the PCM if necessary.

7. How much does it cost to fix the P2004 code on an Infiniti?

The repair cost varies depending on the root cause, but it typically ranges from $150 to $600, including parts and labor.

8. Can a dirty intake manifold cause a P2004 code?

Yes, carbon buildup or debris in the intake manifold can prevent the tumble control valve from operating properly, triggering the code.

9. How can I prevent the P2004 code from recurring?

Regular maintenance, such as cleaning the intake system and using quality fuel, can help prevent carbon buildup and keep the tumble control valve functioning correctly.

10. Will clearing the code with a scanner fix the P2004 issue?

Clearing the code will temporarily turn off the Check Engine Light, but the problem will return if the underlying issue is not resolved.