Cold Start Idle Air Control System Performance
Table of contents
P050A TOYOTA Possible Causes
- Throttle body assembly
- Mass air flow meter
- Air induction system
- PCV hose connections
- VVT system
- Air cleaner filter element
- ECM
How do I fix code P050A TOYOTA?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the P050A TOYOTA code
The cost of diagnosing the P050A TOYOTA code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
When is the code detected
The temperature of the catalyst inlet does not rise to the proper temperature when the engine is started with pre-warming up condition.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P050A TOYOTA Description
The Electronic Throttle Control System (ETCS) controls the engine idling speed. The ETCS operates the throttle actuator to open and close the throttle valve, and adjusts the intake air amount to achieve the target idling speed. In addition, the ECM retards the ignition timing and the ETCS increases the intake air amount to quickly increase the catalyst temperature at cold start to reduce emissions.