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AutoCodes - Generic - P050A

P050A Code - Cold Start Idle Air Control System Performance

- Code Popularity: 29,130 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P050A?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Throttle Body Assembly
  • Mass Air Flow (MAF) Sensor
  • Air induction system
  • Positive Crankcase Ventilation (PCV) hose connections
  • Variable Valve Timing (VVT) system
  • Air cleaner filter element
  • Faulty Engine Control Module (ECM)
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How to Fix the DTC P050A?

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

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P050A code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code P050A Description

This monitor will run when the engine is started at an engine coolant temperature of -10 to 50°C (14 to 122°F). The Diagnostic Trouble Code (DTC) will be stored after the engine idles for 13 seconds (2 trip detection logic).
The DTC is designed to monitor the idle air control at a cold start. When the engine is started at an engine coolant temperature of below 50°C (122°F), the Engine Control Module (ECM) measures the accumulated mass air flow during engine idling. If the accumulated mass air flow does not reach the specified level within 10 seconds, the ECM interprets this as a malfunction. The MIL is illuminated, and a DTC is stored when the malfunction is detected in consecutive driving cycles (2 trip detection logic).
The electronic throttle control system controls the idle speed. The electronic throttle control system operates the throttle actuator to open and close the throttle valve and adjusts the intake air amount to achieve the target idle speed.

OBDII Code P050A - Cold Start Idle Air Control System Performance - AutoCodes.com
P050A Code - Cold Start Idle Air Control System Performance

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Code P050A comments

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