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P2004 on Tesla: Symptoms, Causes & Fix

Intake Manifold Runner Control (IMRC) Stuck Open (Bank 1)

Official technical diagnostic wire for fault code P2004 specifically affecting Tesla vehicles (Model 3, Model Y, Model S, Model X, Cybertruck).

Sensor Voltage Ref
0.1V – 5.0V Ref
Tesla Factory Standard
CAN Bus Speed
500 kbps CAN-FD
ISO 15765-4 Diagnostic Bus
Drivability Status
Drivable (Short Trip)
Medium urgency level
Est. Repair Cost
$150 - $600 (DIY: $40 - $180)
Parts & Labor DIY
Model-Specific Diagnostic Wires

Select Your Tesla Model for P2004:

5 Models Available

1. Common Symptoms on Tesla Vehicles

When Tesla Engine Control Modules (ECM) trigger fault code P2004, drivers typically report:

Check Engine Light on on Tesla Powertrains
Sluggish low-RPM acceleration and low-end torque loss on Tesla Powertrains
Engine runs fine at high highway RPMs (3,500+ RPM) on Tesla Powertrains
Slightly rough idle or minor intake whistling noise on Tesla Powertrains

2. Root Causes on Tesla Engines

Historical diagnostic claims across Tesla engines point to the following failure distribution:

55%
Carbon buildup binding the intake manifold swirl flap runner plates (Tesla OEM Part)
25%
Broken plastic IMRC actuator linkage rod or vacuum diaphragm (Tesla OEM Part)
12%
Faulty electronic IMRC runner control motor / solenoid (Tesla OEM Part)
8%
Cracked vacuum line to IMRC actuator (Tesla OEM Part)

3. Step-by-Step Fix Protocol for Tesla

01
Visually Inspect IMRC Actuator Linkage

Check the mechanical plastic linkage arms at the end of the intake manifold. Verify arms are not popped off or broken. on Tesla engines.

Required Tool: Flashlight, Mirror
02
Test Runner Flap Movement Manually

Move the runner lever by hand. It should spring back smoothly without binding or gritty resistance. on Tesla engines.

Required Tool: None
03
Test IMRC Solenoid / Actuator Motor

Command IMRC open and closed with bi-directional scan tool or check vacuum supply to diaphragm. on Tesla engines.

Required Tool: OBD-II Bi-Directional Scanner or Vacuum Gauge
04
Clean Intake Manifold Carbon or Replace Actuator

Replace the broken linkage/actuator motor or remove manifold to clean heavy carbon deposits around the butterfly flaps. on Tesla engines.

Required Tool: Socket Set, Carburetor Cleaner, Gasket Set
05
Clear DTCs and Verify Runner Operation

Clear trouble codes and confirm low-end acceleration is restored. on Tesla engines.

Required Tool: OBD-II Scanner
Recommended Parts & Testing Tools

Equipment for Diagnosing Tesla (P2004)

Prime Fast Delivery & Verified Fitment
Direct-Fit Replacement Part

Tesla OEM Replacement Sensor

4.7 / 5.0 (Verified Fit)

Direct-fit replacement assembly engineered to OEM tolerances for Tesla.

$45 – $95 Prime
Check Fitment on Amazon
Sensor Signal Voltage Meter

AstroAI Auto-Ranging Digital Multimeter

4.6 / 5.0 (Best Seller)

Essential for testing 0.1V–5.0V sensor reference signals, ground continuity (<0.20Ω), and harness resistance.

$29.99 Prime
View on Amazon
Top Mobile OBD-II Scanner

BlueDriver Bluetooth Pro OBDII Scan Tool

4.7 / 5.0 (50,000+ Reviews)

Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.

Compare OEM & Aftermarket Replacement Sensors for TeslaVerified direct-fit pricing from Denso, Bosch, Motorcraft, and ACDelco on Amazon.
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4. Tesla P2004 Frequently Asked Questions

What does code P2004 mean on a Tesla?

On Tesla vehicles, P2004 indicates that the Engine Control Module (ECM) detected intake manifold runner control (imrc) stuck open (bank 1). This typically points to Carbon buildup binding the intake manifold swirl flap runner plates or Broken plastic IMRC actuator linkage rod or vacuum diaphragm.

Can I continue driving my Tesla with code P2004?

Yes. Low-end engine torque will feel sluggish, but vehicle is drivable. Because this code carries a Medium severity rating on Tesla powertrains, we recommend scanning live data values promptly to prevent secondary damage.

How much does it cost to fix code P2004 on a Tesla?

Estimated DIY parts cost ranges from $150 - $600 (DIY: $40 - $180), while professional shop repairs at an authorized Tesla dealership or independent specialist typically range from $180 to $380 including diagnostic labor.