AutoCodes – Generic – P2074

P2074 Code - Manifold Absolute Pressure/Mass Air Flow - Throttle Position Correlation at Higher Load

Quick Answer

The Engine Control Module (ECM) has detected a failed signal correlation between the Manifold Pressure (MAP) and Throttle Position Sensor (TPS) Common causes include Large vacuum leak on the engine, Faulty Manifold Pressure (MAP) sensor, Faulty Throttle Position Sensor (TPS). Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P2074 indicates Manifold Absolute Pressure/Mass Air Flow - Throttle Position Correlation at Higher Load.
Common causes
Common causes include Large vacuum leak on the engine, Faulty Manifold Pressure (MAP) sensor, Faulty Throttle Position Sensor (TPS).
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 46,534
How popular is this code, among other codes? Medium
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P2074 Description

The Engine Control Module (ECM) has detected a failed signal correlation between the Manifold Pressure (MAP) and Throttle Position Sensor (TPS)
OBDII Code P2074 - Manifold Absolute Pressure/Mass Air Flow - Throttle Position Correlation at Higher Load - AutoCodes.com
P2074 Code - Manifold Absolute Pressure/Mass Air Flow - Throttle Position Correlation at Higher Load

What are the Possible Causes of the DTC P2074?

  • Large vacuum leak on the engine
  • Faulty Manifold Pressure (MAP) sensor
  • Faulty Throttle Position Sensor (TPS)
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P2074?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2074 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P2074 code?

Need more information on how to fix the P2074 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2074 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

  • P2074 Chrysler β€” Manifold Pressure/Throttle Position Correlation- High Flow/Vacuum Leak
  • P2074 Dodge β€” Manifold Pressure/Throttle Position Correlation- High Flow/Vacuum Leak
  • P2074 Ford β€” Manifold Absolute Pressure/Mass Air Flow - Throttle Position Correlation at Higher Load
  • P2074 Jeep β€” Manifold Pressure/Throttle Position Correlation- High Flow/Vacuum Leak
  • P2074 Mazda β€” Manifold Absolute Pressure/Mass Air Flow - Throttle Position Correlation at Higher Load
  • P2074 Mitsubishi β€” Manifold Absolute Pressure/Mass Air Flow - Throttle Position Correlation at Higher Load
About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2074 Code

1. What are the common symptoms of OBDII code P2074?

- Common symptoms of code P2074 include rough idling, engine stalling, reduced engine power, hesitation during acceleration, and potential increase in fuel consumption.

2. What are the possible causes of OBDII code P2074?

- The code P2074 is typically caused by issues such as a faulty throttle position sensor, a malfunctioning mass airflow sensor, a vacuum leak in the intake manifold, or a problem with the wiring/connectors related to these components.

3. How can I diagnose the OBDII code P2074?

- To diagnose code P2074, you can use an OBDII scanner to retrieve the trouble codes and then perform a visual inspection of the throttle position sensor, mass airflow sensor, and intake manifold for any visible damage or signs of wear. You may also need to perform voltage and resistance tests on these components.

4. What are the repair options for OBDII code P2074?

- Repair options for code P2074 may include replacing the throttle position sensor, mass airflow sensor, or repairing any vacuum leaks in the intake manifold. It is recommended to follow the manufacturer's diagnostic and repair procedures to address the specific cause of the code.

5. Can I drive my vehicle with OBDII code P2074?

- It is not recommended to drive your vehicle with unresolved OBDII code P2074, as it can lead to further damage to the engine and other components. It is best to address the underlying issue causing the code as soon as possible.

6. How much does it cost to repair OBDII code P2074?

- The cost to repair OBDII code P2074 can vary depending on the specific cause of the code, the labor rates in your area, and the cost of replacement parts. It is recommended to obtain quotes from local mechanics or repair shops for an accurate estimate.

7. Can a DIY enthusiast fix OBDII code P2074?

- DIY enthusiasts with automotive repair experience may be able to fix OBDII code P2074, especially if they have the necessary tools and knowledge to diagnose and replace components like the throttle position sensor or mass airflow sensor. However, it is important to ensure proper diagnosis and repair procedures are followed.

8. Will OBDII code P2074 cause my check engine light to illuminate?

- Yes, OBDII code P2074 will trigger the check engine light to illuminate on the dashboard. It is important not to ignore the check engine light and to address the underlying issue causing the code to prevent further damage to the vehicle.

9. How long does it typically take to repair OBDII code P2074?

- The time required to repair OBDII code P2074 can vary depending on the complexity of the issue and the availability of replacement parts. In general, the repair process may take a few hours to a full day to complete.

10. What should I do if OBDII code P2074 keeps coming back after repairs?

- If OBDII code P2074 keeps coming back after repairs, it may indicate that the underlying issue was not fully resolved or that there is another related problem. In such cases, it is recommended to recheck the components related to the code and ensure proper diagnosis and repair procedures are followed.

Discuss the causes and fixes for P2074 OBDII Code

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