OBD2 Car ScannerWhat does P022F mean?
P022F stands for Charge Air Cooler Bypass Control B Circuit High. The engine computer has found a problem with how fuel and air are measured or mixed. This affects fuel economy, emissions and sometimes how smoothly the engine runs.
Powertrain codes cover the engine, transmission and emissions. When the car's computer sees a reading outside its normal range, it stores this code and may turn on a warning light on the dashboard.
Common causes
- Vacuum or intake air leaks
- Dirty or faulty mass airflow (MAF) sensor
- Faulty oxygen sensor or its wiring
- Fuel pressure problems (pump, filter or regulator)
- Clogged or leaking fuel injectors
What to do
- Read all stored and pending codes with a scanner. Several codes together often point to one cause.
- Note the freeze frame data (speed, temperature, load) recorded when the code was set.
- Inspect the wiring and connectors of the part named in the code for damage, corrosion or looseness.
- Fix the most likely and cheapest cause first, then clear the code and drive to see if it comes back.
Read this code from your own car
Plug in a cheap ELM327 adapter and the app shows every fault code, what it means and how to fix it.
Frequently asked questions
What does P022F mean?
P022F means “Charge Air Cooler Bypass Control B Circuit High”. It belongs to the fuel and air metering group: The engine computer has found a problem with how fuel and air are measured or mixed. This affects fuel economy, emissions and sometimes how smoothly the engine runs.
Is it safe to drive with P022F?
You can usually drive carefully for a short time, but fix it soon to avoid further damage or higher fuel use.
How do I clear P022F?
Fix the cause, then clear the code with an OBD2 scanner or app. If the fault is still there, the code will come back.
Related codes
- P022BCharge Air Cooler Bypass Control A Circuit Low
- P022CCharge Air Cooler Bypass Control A Circuit High
- P022DCharge Air Cooler Bypass Control B Circuit Open
- P022ECharge Air Cooler Bypass Control B Circuit Low
- P0230Fuel Pump Primary Circuit Malfunction
- P0231Fuel Pump Secondary Circuit Low
- P0232Fuel Pump Secondary Circuit High
- P0233Fuel Pump Secondary Circuit Intermittent
Code meanings can vary by manufacturer. This page is general guidance, not a repair manual. Always confirm the cause before replacing parts.