Fuel and air

P2015 — Intake Manifold Runner Position Sensor Circuit, Bank 1

Severity: medium Drive with care, to a shop

What P2015 means

The engine control unit moves flaps (runners) in the intake manifold to change intake path length with engine speed and load. A position sensor or switch reports where the flaps are. P2015 is set when the bank 1 sensor signal does not match the commanded position or is outside the normal circuit range.

Symptoms

  • Rough idle
  • Reduced power at certain RPM
  • Hesitation on acceleration
  • Check Engine light on
  • Engine may enter limp mode
  • Possible higher fuel consumption

Possible causes

  1. Failed runner position sensor
  2. Carbon-clogged or stuck runner flaps
  3. Failed actuator (vacuum solenoid, motor or linkage)
  4. Open, shorted or corroded wiring or connector
  5. Mechanical failure of flaps, shaft or lever
  6. PCM fault (rare)

How to diagnose

  1. Scan all codes and freeze frame data, and note any other intake-related codes
  2. Inspect the sensor and actuator connectors and harness for corrosion or damage
  3. Check sensor power, ground and reference voltage with a multimeter
  4. Move the actuator linkage by hand and check for binding
  5. On vacuum-operated systems, inspect hoses, control solenoid and diaphragm
  6. Command the actuator with a scan tool and watch the sensor signal change
  7. Remove the manifold or intake duct and inspect the flaps for carbon, play or damage

Common fixes

  • Clean the runner flaps and shaft of carbon
  • Replace the runner position sensor
  • Replace the actuator or vacuum solenoid
  • Repair the wiring or connector
  • Replace the intake manifold or runner assembly if mechanically worn

Questions and answers

What does P2015 mean?

The engine computer found that the bank 1 intake manifold runners are not where they were commanded, or the position sensor signal is faulty. The cause may be the sensor, actuator, wiring or the flaps themselves.

Can I drive with P2015?

Briefly and carefully, yes, but power will be reduced. A broken flap could enter the engine, so get it diagnosed as soon as you can.

This is general information about the code. The meaning can differ between makes and models: a scan tool and the repair manual for your car will show the exact cause.