P2018 Fault Code

Intake Manifold Runner Position Sensor/Switch Circuit Intermittent Bank 1a

• What does that mean?
• Symptoms
• Causes
• Solutions

The P2018 code refers to a fault in the intake manifold runner position sensor or switch circuit for Bank 1a. This part is crucial for optimizing engine performance by controlling the airflow into the engine. If this circuit experiences intermittent issues, the engine control module (ECM) may receive faulty readings, leading to inefficient engine performance.

What are the symptoms of the P2018 code?

Drivers may experience various symptoms when the P2018 code is triggered, such as:

• Reduced engine performance or power
• Poor fuel economy
• Check engine light illumination
• Rough idling or stalling
• Potential difficulty in passing emissions tests

What causes the P2018 code?

Several factors can contribute to the P2018 fault code, including:

• Faulty intake manifold runner position sensor
• Damaged wiring or connectors in the circuit
• Vacuum leaks in the intake system
• Issues with the engine control module (ECM)
• Carbon buildup affecting the runner operation

How to fix P2018?

To resolve the P2018 code, consider the following steps:

1. Inspect the wiring and connectors for damage or corrosion.
2. Test the intake manifold runner position sensor for proper function.
3. Check for vacuum leaks in the intake system and repair as necessary.
4. Clean any carbon deposits in the intake manifold.
5. If all else fails, consider reprogramming or replacing the ECM.