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Code P2020

Symptoms

• Check Engine Light is on

• Reduced engine performance

• Poor fuel economy

Common Causes

• Faulty intake manifold runner position sensor

• Wiring issues or poor electrical connections

• Stuck or malfunctioning intake manifold runner

Glossary

Intake Manifold: A part of the engine that distributes air to the cylinders.

PCM: Powertrain Control Module, the computer that controls engine functions.

Related Codes

• P2019

• P2021

Official description

Intake Manifold Runner Position Sensor/Switch Circuit Range/Performance Bank 2

Laymans terms

This code means the car's computer thinks something is wrong with a part that helps control how air goes into the engine. It's like a door that opens and closes to let air in, and the computer thinks the door isn't working right.

Explanation

The intake manifold runner is a part that helps control air flow into the engine. The sensor checks if it's working correctly. If the sensor detects a problem, it triggers this code.

Technical description

The P2020 code indicates that the powertrain control module (PCM) has detected a problem with the intake manifold runner position sensor/switch circuit on Bank 2. The sensor is not reading within the expected range or performance parameters.

Diagnosis steps

• Use an OBD-II scanner to confirm the code.

• Inspect the wiring and connectors for damage.

• Test the intake manifold runner position sensor for proper operation.

Repair procedures

• Replace the intake manifold runner position sensor if faulty.

• Repair or replace damaged wiring or connectors.

• Clean or replace the intake manifold runner if stuck.

Tools required

• OBD-II scanner

• Multimeter

• Basic hand tools

Estimated repair cost

$150 - $400

Difficulty level

Moderate

Commonly affected vehicles

• Ford F-150

• Chevrolet Silverado

• Dodge Ram 1500

Preventive measures

• Regular maintenance checks

• Keep sensors clean

• Inspect wiring periodically

Error code type

Sensor Issue

User experience recommendations

• Avoid driving aggressively until repaired.

• Get the vehicle checked by a professional.

• Monitor fuel consumption for unusual changes.

Warranty information

Check if the intake manifold or sensors are covered under the vehicle's warranty.

Historical data

This code has been commonly reported in vehicles with high mileage or those that have not been maintained regularly.

Urgency level

Moderate – It should be addressed soon to avoid potential engine performance issues.

Legal and safety notice

Driving with this code may not be safe if engine performance is significantly affected.

Testing conditions

• Engine at operating temperature

• Vehicle running at idle

Component location

The intake manifold runner position sensor is located on the intake manifold, typically on the side of the engine where Bank 2 is situated.

FAQs

Q: Can I drive with a P2020 code?
A: It's possible, but not recommended, as it may affect engine performance and fuel efficiency.

Q: How do I reset the check engine light after fixing the issue?
A: You can use an OBD-II scanner to clear the code, or disconnect the battery for a few minutes.

Last updated: Jan 16, 2026 • Source: internal database
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