P016A
Excessive Time To Enter Closed Loop Air/Fuel Ratio Control
P016A is an OBD-II diagnostic trouble code meaning: Excessive Time To Enter Closed Loop Air/Fuel Ratio Control. Common causes: malfunction of oxygen sensors, problems with coolant temperature sensors. Estimated repair cost: $33–167.
Symptoms
- Increased fuel consumption
- Unstable idling
- Reduced engine power
- Increased CO emissions
Causes
- Malfunction of oxygen sensors
- Problems with coolant temperature sensors
- Leaks in the intake system
- Malfunction of fuel injectors
- Problems with the mass air flow sensor (MAF)
- Malfunction of the oxygen sensor heating circuit
- ECU software error
How to Fix
- Check the condition of the oxygen sensors and their heating circuits
- Diagnose the performance of the mass air flow sensor and temperature sensors
- Check the tightness of the intake tract
- Check fuel injectors for clogging and performance
- Read real engine operating parameters through a diagnostic scanner
- If necessary, update the ECU firmware
- Replace faulty components
Related codes
Error P016A by Vehicle Brand
FAQ
What does the P016A code mean?
P016A is an OBD-II diagnostic trouble code that indicates: Excessive Time To Enter Closed Loop Air/Fuel Ratio Control
What causes a P016A error code?
The most common causes of P016A include: Malfunction of oxygen sensors; Problems with coolant temperature sensors; Leaks in the intake system; Malfunction of fuel injectors.
How do I fix a P016A diagnostic trouble code?
To fix P016A: Check the condition of the oxygen sensors and their heating circuits. Diagnose the performance of the mass air flow sensor and temperature sensors. Check the tightness of the intake tract. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P016A?
Limited driving only, diagnose soon
How much does it cost to fix P016A?
The estimated repair cost for P016A is $33–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat