Code result
P2018
Intake Manifold Runner Position Sensor/Switch Circuit Open
Moderate severity
What it means
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?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Sensor element open
highOne of the most commonly reported causes for this code — check this first.
Signal wire open
mediumA plausible cause — test and verify before replacing parts.
Pin pushed back out of connector body
lowLess common, but worth ruling out after the more likely causes.
Related help
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