P2004 is a diagnostic trouble password (DTC) because that "Intake Manifold Runner regulate Stuck Open bank 1". This can take place for many reasons and a mechanic demands to diagnose the certain cause because that this password to be triggered in her situation. Ours certified mobile mechanics can pertained to your home or office to carry out theCheck Engine irradiate diagnosticfor $114.99. Once we room able come diagnose the problem, you will certainly be listed with an upfront quote because that the recommended fix and also receive $20.0 off together a credit towards the repair. Every our repairs space backed by ours 12-month / 12,000-mile warranty.

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P2004 code definition

Intake Manifold Runner manage (IMRC) grounding Open bank 1

Related problem Codes:

P2005: IMRC grounding Open financial institution 2P2006: IMRC stuck Closed financial institution 1P2007: IMRC stuck Closed financial institution 2P2008: IMRC Circuit Open bank 1P2009: IMRC Circuit Low bank 1P2010: IMRC Circuit High financial institution 1P2011: IMRC Circuit Open bank 2P2012: IMRC Circuit Low bank 2P2013: IMRC Circuit High financial institution 2P2014: input Manifold Runner place Sensor/Switch Circuit bank 1P2015: entry Manifold Runner position Sensor/Switch Circuit Range/Perf bank 1P2016: input Manifold Runner position Sensor/Switch Circuit Low bank 1P2017: intake Manifold Runner place Sensor/Switch Circuit High bank 1P2018: input Manifold Runner position Sensor/Switch Circuit Interm financial institution 1P2019: input Manifold Runner position Sensor/Switch Circuit financial institution 2P2020: intake Manifold Runner position Sensor/Switch Circuit Range/Perf financial institution 2P2021: entry Manifold Runner place Sensor/Switch Circuit Low financial institution 2P2022: entry Manifold Runner place Sensor/Switch Circuit High financial institution 2P2023: input Manifold Runner place Sensor/Switch Circuit Interm bank 2

What the P2004 password means

The P2004 diagnostic trouble code indicates that the entry manifold runner control (IMRC) is grounding in the open position on financial institution 1.

The Powertrain control Module (PCM) provides the IMRC with details relating to current driving conditions, and the IMRC uses this info to manage the lot of air flow that is permitted right into the intake system. By regulating intake airflow, harmful emissions room reduced, the air/fuel mixture is improved, and fuel economic situation is increased.

The contents of the IMRC include:

vacuum actuator electrical solenoidbutterfly valve platesair passageways to every cylinderlinkage rods connected to the input manifold butterfly key levelreturn springs that host the butterfly valve plates open up

The PCM receives details from the IMRC solenoid, mass airflow (MAF) sensor, and barometric (BARO) sensor to make a determination as to the ideal position the the IMRC butterfly valve plates. The plates climate open and also close to enable or restrict wait from entering right into the entry system.

At high speeds/RPM, the IMRC butterfly valve plates will open to permit the circulation of air into the input system, and also at short speeds/RPM, the IMRC butterfly valve plates will certainly close come restrict the flow of air into the intake system. If the PCM determines the voltage reading from the IMRC solenoid, MAF sensor, and also BARO sensor suggest that the IMRC butterfly valve plates space not in the appropriate position, that will store the P2004 trouble code.

What reasons the P2004 code?

IMRC solenoid the is defectiveIMRC solenoid wiring that has actually shorts, breaks, or is frayed.IMRC solenoid circuitry that has shorted or is openIMRC solenoid connector the is corrodedIMRC butterfly valve key screws that are loosened or brokenIMRC butterfly valve bowl that room brokenIMRC butterfly valves bowl that have disconnected from the IMRC actuatorVacuum regulate solenoid vacuum filter that is cloggedDebris in the vacuum manage solenoidVacuum lines that space disconnected or brokenCarbon buildup on the IMRC butterfly valve platesExhaust gas recirculation (EGR) valve trouble codes that have actually been stored by the PCMMAF sensor problem codes that have actually been save by the PCMBARO sensor trouble codes that have actually been save by the PCM

What space the symptoms of the P2004 code?

Decrease in fuel economyDecrease in low end engine torqueThe engine might surge/sputterThe auto will run roughCheck Engine/Service Engine shortly Light onCheck Engine/Service Engine shortly Light flashing

How walk a mechanic diagnose the P2004 code?

Uses one OBD-II scanner to collect freeze structure data and also any trouble codes that have actually been save by the PCM (if problem codes for the EGR valve, MAF sensor, and/or BARO sensor have actually been stored by the PCM, they must be diagnosed and repaired first)Completes a intuitive inspection of all wiring for shorts, breaks, and fraysRepairs or replaces any type of shorted, frayed, or damaged wiringCompletes a intuitive inspection of the IMRC solenoid for corrosion and also damageRepairs or replaces any type of corroded or damaged connectorsInspects the vacuum lines and also hosesRepairs or replace instead replace any loosened or damaged vacuum lines or hoses Inspects the IMRC butterfly valve bowl for appropriate connection and/or breaksInspects the EGR valve for excessive carbon buildup (this carbon buildup can get top top the IMRC solenoid and also render the defective)Clears the codes and retests to watch if the P2004 trouble code returnsUses the scan tool to test the IMRC solenoid:

Open and also close the IMRC solenoid utilizing the scanner. If the IMRC solenoid does no respond, the solenoid will have to be replaced.

Common mistakes once diagnosing the P2004 code

Misdiagnosing and replacing the IMRC solenoidMisdiagnosing and replacing the IMRC butterfly valve platesOverlooking damaged or disconnected vacuum linesOverlooking IMRC solenoid connector and wiringReplacing the IMRC butterfly valve plates when the difficulty was the they to be not associated properlyNeglecting come diagnose and repair other EGR valve, MAF sensor, and/or BARO trouble codes before making any type of repairs for the P2004 problem code.

How severe is the P2004 code?

The P2004 trouble code may come to be serious if the hardware for the IMRC butterfly valve bowl become loose and loss off into the engine. If this happens, severe engine damages is possible, and could potentially reason engine failure. It is necessary to have actually the P2004 trouble password inspected and repaired as soon as possible.

What repairs deserve to fix the P2004 code?

Replacing the IMRC solenoidRepairing or replacing IMRC solenoid wiring that has actually shorts, division or is frayedRepairing or replacing IMRC solenoid circuitry that has actually shorted or is openRepairing or instead of IMRC solenoid connector that is corroded.Repairing and/or instead of IMRC butterfly valve plate hardware, if necessaryRepairing or replacing loose or damaged vacuum linesReplacing IMRC butterfly valve plates (in order to execute this, the entry manifold assembly will need to be replaced)Diagnosing and also repairing EGR valve, MAF sensor, and/or BARO trouble codes, if present

Additional comments because that consideration concerning the P2004 code

The PCM may store the P2004 trouble code if the IMRC butterfly valve plates end up being detached from the IMRC actuator. This code might be resolved easily by check the connection of the IMRC butterfly valve plates and also the IMRC actuator.

It is also common for the PCM to save the P2004 trouble code because carbon buildup in the intake is causing the IMRC butterfly valve bowl to become stuck.

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