P2016: Intake manifold runner position sensor circuit low (bank 1)
The ECU receives too low a voltage from the intake runner flap position sensor. Wiring, the connector or the sensor itself is the usual cause.
| Code | P2016 |
|---|---|
| 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 P2016 means
The position sensor tells the ECU where the intake manifold runner flaps are by means of a voltage. Here that voltage is below the possible range, which points to an electrical problem (wiring, connector, earth or the sensor) rather than the actual flap position.
Most common causes
- Loose or corroded position sensor connector
- Signal wire shorted to earth or broken
- Missing sensor reference supply (usually 5 volts)
- Faulty position sensor
- Engine ECU fault (rare)
Symptoms
- Engine warning light on
- Possible slight loss of power
- Sometimes no symptoms
Can you drive with P2016?
Yes, no rush You can keep using the car normally and fix it without rushing; at most it will perform slightly less well.
Open the bonnetthe in-depth explanation
How to check it
If your scanner shows the flap position live and it reads zero or near zero all the time, suspect the wiring or the supply. Check the connector before replacing parts.
How to read and clear P2016 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 P2016 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
- P2012 The circuit signal for the intake manifold air control actuator on bank 2 is
- P2013 The circuit signal for the intake manifold air control actuator on bank 2 is
- P2014 There is a fault in the position sensor or switch circuit for the intake air
- P2015 Intake runner position sensor: range or performance problem (bank 1)
- P2017 Intake manifold runner position sensor circuit high (bank 1)
- P2018 The position sensor or switch circuit for the intake air actuator on bank 1 has
- P2019 There is a fault in the position sensor or switch circuit for the intake
- P201A The AdBlue injector circuit for unit 1 on bank 2 operates outside its range
- P2002 Diesel particulate filter efficiency below threshold (bank 1)
- P2003 Diesel particulate filter efficiency below threshold (bank 2)
- P2004 Intake manifold runner control stuck open (bank 1)
- P2005 Intake manifold runner control stuck open (bank 2)
What does code P2016 mean?
The position sensor tells the ECU where the intake manifold runner flaps are by means of a voltage. Here that voltage is below the possible range, which points to an electrical problem (wiring, connector, earth or the sensor) rather than the actual flap position.
Can you drive with P2016?
You can keep using the car normally and fix it without rushing; at most it will perform slightly less well.
How do you clear P2016?
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, P2016 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.
