Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer is getting confusing information from two sensors that measure air pressure. It's like if two thermometers showed very different temperatures in the same room.
The car's computer compares readings from two barometric pressure sensors. If the readings don't match, it triggers this code.
The P222F code is set when the Engine Control Module (ECM) detects a discrepancy between the readings of Barometric Pressure Sensor A and Sensor B. These sensors are responsible for measuring the atmospheric pressure, which is crucial for the engine's air-fuel mixture calculations.
• Check Engine Light is on
• Poor engine performance
• Increased fuel consumption
• Faulty barometric pressure sensor
• Wiring issues or poor connections
• Faulty ECM
ECM: Engine Control Module, the computer that controls the engine's functions.
OBD-II: On-Board Diagnostics, a standardized system for self-diagnostics and reporting in vehicles.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage.
• Test the barometric pressure sensors for proper function.
• Replace the faulty barometric pressure sensor.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Screwdriver set
$150 - $400
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect and maintain sensor connections.
• Keep the engine bay clean to prevent sensor contamination.
• Schedule regular vehicle diagnostics.
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional if unsure.
• Avoid driving in extreme conditions until fixed.
Check if the vehicle's powertrain warranty covers sensor replacement.
This code has been more common in vehicles with dual barometric pressure sensors, introduced in newer models for more accurate readings.
Moderate – It should be addressed soon to prevent further engine performance issues.
Driving with a faulty sensor can lead to increased emissions and may not pass emissions testing.
• Engine at operating temperature
• Vehicle at sea level or known altitude
The barometric pressure sensors are typically located in the intake manifold or near the air filter housing.
Q: Can I drive with a P222F code?
A: It's not recommended as it may lead to poor engine performance and increased fuel consumption.
Q: How do barometric pressure sensors work?
A: They measure the atmospheric pressure to help the engine adjust the air-fuel mixture for optimal performance.
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