P2008: Intake manifold runner control circuit open or faulty (bank 1)
The ECU cannot properly drive the intake manifold runner flap actuator. A broken wire, a connector or the actuator itself is typical.
| Code | P2008 |
|---|---|
| System | Engine and transmission |
| Group | P20xx, Emissions: catalysts and AdBlue |
| Type | Generic: it means the same on every make |
| Can you keep driving? | Yes, no rush |
What P2008 means
Intake manifold runner flaps change the air path depending on engine speed. The ECU operates them with a small motor or a solenoid valve; here it detects that this control circuit is open or not behaving like a healthy circuit, so the flaps are left uncontrolled.
Most common causes
- Loose or corroded actuator or solenoid connector
- Control wire broken or making poor contact
- Blown fuse or missing actuator supply
- Failed runner flap actuator or solenoid
- Engine ECU fault (uncommon)
Symptoms
- Engine warning light on
- Slightly less pulling power in some rev ranges
- Sometimes no noticeable symptoms
Can you drive with P2008?
Yes, no rush You can carry on using the car normally; at most you will notice a little less performance. Fix it when convenient.
Open the bonnetthe in-depth explanation
How to check it
Find the actuator on the intake manifold and make sure its connector is seated and clean. If your scanner can activate the actuator, listen for it or watch it move when commanded.
How to read and clear P2008 with Final OBD
Plug an OBD2 scanner in under the steering wheel, switch the ignition on and open Final OBD. Under Faults you’ll see P2008 with its description and whether it’s confirmed, pending or permanent.
If the engine stores it over standard OBD, with FREE you read this code with its explanation for nothing and clear it. With PRO you also read the faults of every control unit and clear them in all of them.
Clearing the code only turns the light off: if the cause is still there, it comes back. Clear it once it’s fixed, and not right before an inspection. It’s all in how to read and clear fault codes and in inspections and OBD.
Similar codes
- P2004 Intake manifold runner control stuck open (bank 1)
- P2005 Intake manifold runner control stuck open (bank 2)
- P2006 Intake manifold runner control stuck closed (bank 1)
- P2007 Intake manifold runner control stuck closed (bank 2)
- P2009 Intake manifold runner control circuit low (bank 1)
- P200A The intake manifold flaps are not performing as expected
- P200B The intake manifold runners on bank 2 are not working properly
- P200C The diesel particulate filter (bank 1) is getting too hot
- P2002 Diesel particulate filter efficiency below threshold (bank 1)
- P2003 Diesel particulate filter efficiency below threshold (bank 2)
- P2015 Intake runner position sensor: range or performance problem (bank 1)
- P2016 Intake manifold runner position sensor circuit low (bank 1)
What does code P2008 mean?
Intake manifold runner flaps change the air path depending on engine speed. The ECU operates them with a small motor or a solenoid valve; here it detects that this control circuit is open or not behaving like a healthy circuit, so the flaps are left uncontrolled.
Can you drive with P2008?
You can carry on using the car normally; at most you will notice a little less performance. Fix it when convenient.
How do you clear P2008?
With an OBD2 scanner and an app like Final OBD, which clears it for free if it’s stored by the engine control unit. But clearing it only turns the light off: if the cause isn’t fixed, P2008 comes back.
Read it on your car
Final OBD reads and clears engine faults through standard OBD for free, each one explained in plain English. With PRO it also reads the faults of every control unit, each make’s own codes included, and clears them in all of them.
