P2008

Intake Manifold Runner Control Circuit/Open Bank 1

Fuel & air metering Generic OBD-II Low

What it means

P2008 means the PCM has detected an open in the control circuit for the bank 1 intake manifold runner control (IMRC) — the actuator that opens and closes the intake runner flaps to tune airflow. It's usually a wiring, connector, or actuator fault, and it mainly affects low-speed power and emissions rather than the engine's ability to run.

Low

Can I keep driving? Safe to drive; you may notice slightly reduced low-end power or a minor rough spot, but the engine runs normally otherwise.

Real-world scan data

Seen in

325

scans in the past year

Found in

0.1%

of scans

0.1%

of scans that found faults

Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.

Common symptoms

What you'll notice

Check-engine light on
Slightly reduced low-speed power or torque
Occasional rough idle or hesitation
Minor drop in fuel economy

Common causes

Most likely first

Open or shorted wiring in the IMRC control circuitLikely
Faulty intake manifold runner control (IMRC) actuatorCommon
Faulty IMRC solenoidCommon
Blocked or disconnected vacuum hose (on vacuum-operated systems)Less often
Damaged powertrain control module (PCM)Less often

How to diagnose & fix

Work through it in order

Read freeze-frame data, then visually inspect the IMRC wiring and connectors for opens, corrosion, or damage.
On vacuum-operated systems, check the vacuum hoses and actuator for leaks or blockage.
Test the IMRC actuator/solenoid operation and replace if it fails to move or is out of spec.
Repair any damaged wiring; consider the PCM only after the circuit and actuator check out.

FAQ

Quick answers

Is it safe to drive with P2008?+

Yes. The runners typically default to a position the engine can still run on, so you'll mostly notice reduced low-end response and the warning light. Fix it to restore full performance and pass emissions.

Can I just clear P2008?+

It will return until the open circuit or stuck actuator is repaired — clearing alone won't fix the wiring or solenoid.

Read & clear P2008 yourself

Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.

▶ Get it on Google Play

✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX