Open circuit or high resistance in the IMRC actuator control wire, such as a broken wire or corroded connector; Short to voltage on the IMRC control circuit, often from chafed wiring rubbing against a metal bracket; Failed IMRC actuator or solenoid that no longer responds to PCM commands; Sticking or binding intake manifold runner linkage, causing the actuator to draw abnormal current or fail to reach its commanded position; Faulty PCM driver for the IMRC circuit, though this is less common and should be confirmed last; Corroded or damaged electrical connector at the IMRC actuator or at the PCM; Aftermarket or incorrect actuator replacement that does not match the original resistance or feedback characteristics

DTC codes / P20xx · Fuel and air metering and auxiliary emission controls / P2010

P2010Intake Manifold Runner Control Circuit High (Bank 1)

Q: What does code P2010 mean?

Intake Manifold Runner Control Circuit High (Bank 1). P2010 indicates that the powertrain control module (PCM) has detected an abnormally high voltage on the intake manifold runner control (IMRC) circuit for bank 1, which usually points to an open circuit, a short to voltage, or a faulty actuator. The IMRC system adjusts intake runner length or port flow to optimize airflow at different engine speeds, and a high-voltage fault means the PCM cannot reliably command the runners to move.

P2010 indicates that the powertrain control module (PCM) has detected an abnormally high voltage on the intake manifold runner control (IMRC) circuit for bank 1, which usually points to an open circuit, a short to voltage, or a faulty actuator. The IMRC system adjusts intake runner length or port flow to optimize airflow at different engine speeds, and a high-voltage fault means the PCM cannot reliably command the runners to move.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaFuel and air metering and auxiliary emission controls

Symptoms you may notice

Illumination of the check engine light, often with no other noticeable symptoms
Reduced engine power or sluggish acceleration, especially at low to mid RPM
Rough idle or hesitation during light throttle application
Poor fuel economy due to inefficient intake tuning
In some cases, a noticeable lack of top-end power or an engine that feels flat under load

Common causes, most likely first

Open circuit or high resistance in the IMRC actuator control wire, such as a broken wire or corroded connector
Short to voltage on the IMRC control circuit, often from chafed wiring rubbing against a metal bracket
Failed IMRC actuator or solenoid that no longer responds to PCM commands
Sticking or binding intake manifold runner linkage, causing the actuator to draw abnormal current or fail to reach its commanded position
Faulty PCM driver for the IMRC circuit, though this is less common and should be confirmed last
Corroded or damaged electrical connector at the IMRC actuator or at the PCM
Aftermarket or incorrect actuator replacement that does not match the original resistance or feedback characteristics

How to diagnose and fix it

Scan all modules and record freeze-frame data to confirm P2010 is the only IMRC-related code and to note engine conditions when it set
Visually inspect the IMRC actuator, its connector, and the wiring harness for obvious damage, corrosion, or loose pins
Disconnect the IMRC actuator and measure resistance across its control terminals, comparing to the manufacturer's specification
Check for short to voltage on the control wire by measuring voltage with the actuator disconnected and the key on, engine off
Command the IMRC actuator with a scan tool and observe whether the runner linkage moves smoothly through its full range
Perform a voltage drop test on both the power and ground sides of the IMRC circuit under load to reveal hidden resistance
If wiring and actuator test good, substitute a known-good actuator or perform a bidirectional PCM test before condemning the PCM

What a high-voltage IMRC code really means

A high-voltage code on an actuator circuit often indicates an open circuit rather than a shorted actuator, so a disconnected or broken wire is a more common cause than a failed solenoid.
Many technicians replace the IMRC actuator only to find the real problem is a binding runner linkage that overloads the new part and sets the code again within a few drive cycles.
The PCM may set P2010 intermittently if the wiring harness rubs against the engine block only during certain engine movements, so a wiggle test while monitoring live data is essential.
Some vehicles use the IMRC circuit to control both bank 1 and bank 2 runners through a shared ground, and a fault on the shared ground can set codes for both banks even if only one actuator is defective.
A dirty or carbon-fouled intake manifold can cause the runner flaps to stick, leading to a high-voltage code because the actuator cannot move the flaps to the commanded position and the PCM sees unexpected feedback.

Can I keep driving with P2010?

You can usually continue driving with P2010 because the engine remains driveable, but avoid aggressive acceleration and heavy load until the fault is repaired to prevent potential catalytic converter damage from prolonged rich or lean operation. If the check engine light begins flashing or you notice severe power loss, stop driving and seek professional diagnosis.

Tools that help

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Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.