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P2074 is a diagnostic trouble code (DTC) for "Manifold Absolute Pressure/Mass Airflow - Throttle Position Correlation at Higher Load". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.
Manifold Absolute Pressure/Mass Airflow - Throttle Position Correlation at Higher Load
P2074 is an OBD-II generic code for the Engine Control Module (ECM) detecting a final mass airflow adaption stored value at a higher load (more than 15% above or below the calibrated threshold).
The Check Engine Light will be illuminated and the code set in ECM memory (the ECM may go into failure mode depending on manufacture strategy)
The engine may have limited acceleration, slow throttle response and RPM will be limited
The vehicle may not run smooth and stall or hesitate.
Scans and documents the codes in the ECM
Looks at the freeze frame data for each code so the failure may be duplicated and repaired
Checks the entire intake system and mass airflow sensor for obstructions, loose or broken pipes and hoses
Performs the manufacturer pinpoint test on the mass airflow sensor to check for proper voltage signal and return signal
Clearing ECM memory codes before checking the freeze frame data for the main failure problem
Failing to clear the ECM codes after the codes are fixed
Replacing the mass air flow sensor without duplicating the fault
Code P2074 is an indication that the ECM cannot detect how much air is getting into the engine, or the system has restrictions in the intake air supply that restricts the air when compared to the amount of throttle that is opening.
Code P2074 indicates a different than normal correlation between the throttle angle and the amount of air the mass airflow sensor senses is coming into the engine.
YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.