P2074 Fault Code

Manifold Absolute Pressure/Mass Air Flow Throttle Position Correlation at Higher Load

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

The P2074 fault code indicates a discrepancy between the Manifold Absolute Pressure (MAP) sensor readings and the Mass Air Flow (MAF) sensor data in relation to the Throttle Position at higher load conditions. This could point to issues with the vehicle's air intake system or sensors. Proper functioning of these components is critical for optimal engine performance and efficiency.

What are the symptoms of the P2074 code?

Drivers may experience several symptoms related to the P2074 fault code, such as:

• Check Engine Light illuminated on the dashboard
• Poor engine performance or hesitation during acceleration
• Reduced fuel efficiency
• Unstable or rough idling conditions
• Engine stalling in severe cases

What causes the P2074 code?

Common causes for the P2074 code include:

• Faulty MAP sensor
• Faulty MAF sensor
• Throttle body issues, such as carbon buildup or mechanical failure
• Vacuum leaks in the intake manifold
• Wiring issues or poor connections between the sensors and the Engine Control Unit (ECU)

How to fix P2074?

To resolve the P2074 code, the following steps are often recommended:

1. Inspect the MAP and MAF sensors for damage or malfunction and replace if necessary.
2. Check the throttle body for carbon buildup and clean it as needed.
3. Examine the intake manifold for vacuum leaks and repair any found.
4. Ensure all wiring and connectors between sensors and the ECU are in good condition.
5. After repairs, clear the fault codes from the ECU and perform a test drive to ensure the issue is resolved.