Ford code P2074 is a diagnostic trouble code that indicates a problem with the Manifold Absolute Pressure/Mass Air Flow – Throttle Position Correlation At Higher Load. This code is commonly triggered when the final air mass adaption stored value at a higher load is greater than 15% above or below the calibrated threshold. While several issues can cause this code, the most common causes include a Charge air cooler (CAC) restriction, CAC leak, crankcase ventilation system restriction, crankcase ventilation system leak, intake air system restriction, intake air system leak, a biased mass airflow/intake air temperature (MAF/IAT) sensor, and a damaged MAF/IAT sensor. Fortunately, Ford has released several service bulletins to help diagnose and resolve this issue.
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Causes and Solutions of Ford Code P2074
| Cause | Solution |
|---|---|
| Charge air cooler (CAC) restriction | Replace CAC |
| CAC leak | Check for leaks in the CAC |
| Crankcase ventilation system restriction | Replace the crankcase ventilation system |
| Crankcase ventilation system leak | Inspect the crankcase ventilation system for leaks |
| Intake air system restriction | Replace the intake air system |
| Intake air system leak | Check for leaks in the intake air system |
| Biased mass airflow/intake air temperature (MAF/IAT) sensor | Replace the MAF/IAT sensor |
| Damaged MAF/IAT sensor | Replace the MAF/IAT sensor |
Charge Air Cooler (CAC) Restriction
Ford code P2074 is often triggered by a Charge Air Cooler (CAC) restriction. The CAC is the component responsible for cooling the air after it passes through the turbocharger. If the CAC is blocked, it can cause the air to become too hot, resulting in a P2074 code. The best way to fix this issue is to replace the CAC.
CAC Leak
Another common cause of the Ford code P2074 is a CAC leak. A CAC leak can cause the air to escape through the cracks, resulting in a decrease in air pressure. To resolve this issue, inspecting the CAC for any leaks and replacing any faulty components is necessary.
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Crankcase Ventilation System Restriction
If the crankcase ventilation system is blocked, the engine cannot breathe properly. This can lead to the engine running too hot, which can cause a P2074 code. To resolve this issue, it is necessary to replace the crankcase ventilation system.
Crankcase Ventilation System Leak
If the crankcase ventilation system is leaking, it can cause a decrease in air pressure. This can also lead to the engine running too hot, leading to the P2074 code. To rectify this issue, it is necessary to inspect the crankcase ventilation system for any leaks and repair or replace any faulty components.
Intake Air System Restriction
A restriction in the intake air system can cause the engine not to get enough air, resulting in the engine running too hot. To fix this issue, it is necessary to replace the intake air system.
Intake Air System Leak
A leak in the intake air system can cause a decrease in air pressure. This can lead to the engine running too hot, resulting in the P2074 code. To resolve this issue, it is necessary to inspect the intake air system for any leaks and repair or replace any faulty components.
Biased Mass Airflow/Intake Air Temperature (MAF/IAT) Sensor
A narrow MAF/IAT sensor can cause the engine to run too hot, resulting in the P2074 code. To fix this issue, it is necessary to replace the MAF/IAT sensor.
Damaged MAF/IAT Sensor
A damaged MAF/IAT sensor can cause the engine to run too hot, resulting in the P2074 code. To fix this issue, it is necessary to replace the MAF/IAT sensor.
Conclusion: Diagnosing and Resolving Ford Code P2074
Ford Code P2074 is a diagnostic trouble code that indicates a problem with the Manifold Absolute Pressure/Mass Air Flow – Throttle Position Correlation At Higher Load. While several issues can cause this code, the most common causes include a Charge air cooler (CAC) restriction, CAC leak, crankcase ventilation system restriction, crankcase ventilation system leak, intake air system restriction, intake air system leak, a biased mass airflow/intake air temperature (MAF/IAT) sensor, and a damaged MAF/IAT sensor. Fortunately, Ford has released several service bulletins to help diagnose and resolve Ford Code P2074. Considering the causes and solutions outlined in this article, mechanics should have all the information they need to diagnose and resolve any issues with Ford Code P2074.
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