P2016
Intake Manifold Runner Position Sensor/Switch Circuit Low Bank 1
Fuel & air metering
Generic OBD-II
Low
What it means
P2016 means the intake manifold runner position sensor on bank 1 is reporting an abnormally low voltage. This sensor tells the PCM whether the intake runner flaps are open or closed. A low signal is usually a wiring short-to-ground or a failed sensor; the engine still starts and drives normally, but it will set a check-engine light and can fail emissions readiness.
Low
Can I keep driving? Safe to keep driving — the engine starts and runs normally; the main downside is a check-engine light and a failed emissions monitor.
Common symptoms
What you'll notice
- Check-engine light on
- Possible slight loss of low-rpm power or hesitation
- Usually no strong driving symptoms
Common causes
Most likely first
- Faulty intake manifold runner position sensor (bank 1)Likely
- Signal wire shorted to ground or open in the sensor circuitCommon
- Loose or corroded connector at the sensorCommon
- Faulty powertrain control module (PCM) — rareLess often
How to diagnose & fix
Work through it in order
- Read freeze-frame data to confirm the low-voltage fault on bank 1.
- Inspect the sensor connector and wiring for a short to ground, opens, or corrosion.
- Back-probe the sensor signal and reference voltage against spec.
- Replace the runner position sensor if its output stays low.
- Clear the code and re-test to confirm the repair.
FAQ
Quick answers
Is it safe to drive with P2016?+
Yes — it's mostly an emissions and monitoring issue with little effect on how the car drives.
Can I just clear P2016?+
It returns until the sensor or its wiring is repaired.
Related codes
Often seen with P2016
Read & clear P2016 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX