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Code P2019

Quick reference

P2019 at a glance

Plain-language meaning
This code means that the car's computer is having trouble reading a sensor that tells it how open or closed a part inside the engine is. It's like when you can't tell if a door is open or closed because the light that shows you is broken.
Urgency
Moderate – While the vehicle may still be drivable, it should be repaired to prevent further engine performance issues.
Difficulty
Moderate
System
Sensor Issue
Tools mentioned
OBD-II scanner, Multimeter, Screwdriver set

This summary uses the existing diagnostic information shown in full below.

Laymans terms

This code means that the car's computer is having trouble reading a sensor that tells it how open or closed a part inside the engine is. It's like when you can't tell if a door is open or closed because the light that shows you is broken.

Explanation

The P2019 code indicates an issue with the intake manifold runner position sensor or switch circuit on bank 2. This sensor helps the engine control module (ECM) determine the position of the intake manifold runner, which affects air flow into the engine.

Technical description

The intake manifold runner control system is designed to optimize the air/fuel mixture for better combustion efficiency. The position sensor monitors the position of the intake manifold runner flaps. If the ECM detects a problem with the sensor circuit, it triggers the P2019 code.

Symptoms

• Check Engine Light illuminated

• Reduced engine performance

• Poor fuel economy

• Rough idling

Common Causes

• Faulty intake manifold runner position sensor

• Wiring issues or poor electrical connections

• Malfunctioning intake manifold runner control

• ECM issues

Glossary

ECM: Engine Control Module

OBD-II: On-Board Diagnostics II

Diagnosis steps

• Use an OBD-II scanner to confirm the P2019 code.

• Inspect the wiring and connectors for damage or corrosion.

• 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.

• Replace the intake manifold runner control if necessary.

Tools required

• OBD-II scanner

• Multimeter

• Screwdriver set

Estimated repair cost

$150 - $400

Difficulty level

Moderate

Commonly affected vehicles

• Audi A4

• Volkswagen Passat

• Ford F-150

Preventive measures

• Regularly inspect and maintain the intake system.

• Ensure all sensors and wiring are in good condition.

• Use quality fuel to prevent buildup.

Error code type

Sensor Issue

User experience recommendations

• Avoid heavy acceleration until the issue is resolved.

• Get the vehicle inspected by a professional mechanic.

Warranty information

Check with the vehicle manufacturer for warranty coverage on emissions-related components.

Historical data

The P2019 code has been a common issue in vehicles with variable intake systems, particularly those using advanced emissions control technologies.

Urgency level

Moderate – While the vehicle may still be drivable, it should be repaired to prevent further engine performance issues.

Testing conditions

• Engine at normal operating temperature

• Vehicle in a safe location for testing

Component location

The intake manifold runner position sensor is typically located on the intake manifold, near the engine.

FAQs

Q: Can I drive with a P2019 code?
A: While you can drive with this code, it's not recommended as it may lead to reduced performance and increased emissions.

Q: How do I clear a P2019 code?
A: After repairing the issue, you can clear the code using an OBD-II scanner.

Optional diagnostic gear

Tools that may help diagnose P2019

THINKCAR ThinkScan Bidirectional diagnostic tool illustration

High-End · Full-system diagnostics

THINKCAR ThinkScan Bidirectional

A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.

Network faults often require full-system access instead of a generic code reader alone.

View on Amazon
Klein Tools MM325 diagnostic tool illustration

Universal · Digital multimeter

Klein Tools MM325

A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.

Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.

View on Amazon
WORKPRO Wiring Repair Kit diagnostic tool illustration

Universal · Wire connectors and repair kit

WORKPRO Wiring Repair Kit

Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.

Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.

View on Amazon

These are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.

Fitment matters

Commonly referenced parts for P2019

Denso Mass Air Flow Sensor product illustration

Fitment Required · Vehicle-fitment part

Denso Mass Air Flow Sensor

Relevant for airflow, fuel-trim, and intake-metering faults after confirming the sensor is actually at fault.

Airflow and fuel-trim codes can involve the mass air flow sensor after proper diagnosis.

Verify the sensor design and fitment for your exact vehicle.

View options on Amazon

These parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.

Source: ezOBD2 diagnostic database
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