OBD-II code · Powertrain (generic, extended)
P2018 Intake Manifold Runner Position Sensor/Switch Circuit Open (Bank 2)
The ECU detects an open circuit on the IMRC position sensor on bank 2. Without position feedback the ECU cannot confirm runner switching and falls back to a default mode.
Is it safe to drive with P2018?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySensor element open
- PossibleSignal wire open
- Less likelyPin pushed back out of connector body
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–2 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Imrc Position Sensor B2, Imrc Wiring
Related codes
- P2015Intake Manifold Runner Position Sensor/Switch Range/Performance (Bank 1)
- P2016Intake Manifold Runner Position Sensor/Switch Circuit Low (Bank 1)
- P2017Intake Manifold Runner Position Sensor/Switch Circuit High (Bank 1)
- P2019Intake Manifold Runner Position Sensor/Switch Range/Performance (Bank 2)
- P201AReductant Injection Valve Circuit Range/Performance (Bank 2 Unit 1)
- P201BIntake Manifold Runner Control Actuator Supply Voltage Low (Bank 1)
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.