Intake Manifold Runner Position Sensor Circuit High Bank 2
The P2022 code indicates that the Engine Control Module (ECM) has detected a voltage signal from the intake manifold runner position sensor on bank 2 that is higher than the expected range. This sensor monitors the position of the intake manifold runner control (IMRC) flaps, which adjust air flow into the engine for optimal performance. A high circuit voltage typically points to a short to power, a faulty sensor, or wiring issues. Bank 2 refers to the side of the engine opposite cylinder #1.
1. Most Common Causes
- Faulty intake manifold runner position sensor
- Short to power in the sensor circuit wiring
- Corroded or damaged connector
- Failed ECM (rare)
2. Symptoms You Will Notice
- Check Engine Light illuminated
- Reduced engine power or hesitation
- Poor fuel economy
- Rough idle or stalling
3. Step-by-Step Diagnosis
Step 1: Scan for codes and record freeze frame data.
Step 2: Visually inspect the sensor and wiring for damage or corrosion.
Step 3: Test sensor voltage and ground with a multimeter; compare to specs.
Step 4: Check for shorts to power by disconnecting sensor and monitoring signal wire voltage.
Step 5: Replace sensor if faulty; repair wiring if short is found.
4. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive long distances as it can cause reduced performance and potential engine damage. Short trips to a repair shop are acceptable.
How much does it cost to fix?▼
Typically $50-$150 for diagnosis and sensor replacement, but costs can vary if wiring repairs are needed.
5. Commonly Affected Makes
This is a generic OBD2 code, potentially applicable to any manufacturer using this diagnostic standard.