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Code P2175

Symptoms

• Reduced engine power

• Engine stalling

• Check engine light on

Common Causes

• Faulty throttle body

• Blocked or dirty air filter

• Vacuum leaks

Glossary

Throttle Body: A component that controls the amount of air entering the engine.

ECM: Engine Control Module, the computer that manages engine functions.

Related Codes

• P2176

• P2177

Official description

Throttle Actuator Control System - Low Air Flow Detected

Laymans terms

The car's computer thinks there's not enough air getting into the engine, which can make the car run poorly or not at all.

Explanation

The engine control module (ECM) has detected that the air flow into the engine is lower than expected, which can affect engine performance.

Technical description

P2175 is triggered when the ECM detects that the air flow through the throttle body is lower than the predetermined threshold. This can be due to a malfunction in the throttle actuator control system or an obstruction in the air intake system.

Diagnosis steps

• Check for any vacuum leaks in the intake system.

• Inspect and clean the throttle body.

• Check the air filter for blockages or dirt.

Repair procedures

• Replace or clean the air filter.

• Repair any vacuum leaks.

• Replace or clean the throttle body.

Tools required

• OBD-II scanner

• Screwdriver set

• Throttle body cleaner

Estimated repair cost

$150 - $500

Difficulty level

Moderate

Commonly affected vehicles

• Ford Focus

• Chevrolet Malibu

• Toyota Camry

Preventive measures

• Regularly replace the air filter.

• Perform routine throttle body cleaning.

• Inspect for vacuum leaks periodically.

Error code type

Engine Performance

User experience recommendations

• Do not ignore the check engine light.

• Have a professional inspect the vehicle if unsure.

• Avoid driving the vehicle with reduced power.

Warranty information

Check with your vehicle manufacturer for warranty coverage on throttle body components.

Historical data

This code has been commonly reported in vehicles with electronic throttle control systems.

Urgency level

Moderate – Addressing this issue promptly can prevent further engine performance problems.

Legal and safety notice

Driving with this code active can lead to reduced engine performance and potential safety risks.

Testing conditions

• Engine at operating temperature

• Vehicle in idle or low-speed conditions

Component location

The throttle body is typically located between the air filter and the intake manifold.

FAQs

Q: What happens if I ignore this code?
A: Ignoring this code can lead to poor engine performance and potentially more serious engine issues.

Q: Can I drive my car with a P2175 code?
A: It's not recommended to drive for long periods with this code active, as it can cause further engine damage.

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