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 a signal from a sensor that measures air pressure, and the signal is too high. It's like when a balloon is filled with too much air.
The P227D code is triggered when the Powertrain Control Module (PCM) detects a voltage reading from the Barometric Pressure Sensor C that is higher than the expected range.
The Barometric Pressure Sensor C is responsible for measuring the atmospheric pressure and sending this information to the PCM. The PCM uses this data to adjust the air-fuel mixture and ensure optimal engine performance. A 'Circuit High' condition indicates that the sensor is sending a voltage signal above the normal operating range, which can affect engine performance.
• Check Engine Light illuminated
• Poor engine performance
• Reduced fuel efficiency
• Faulty Barometric Pressure Sensor C
• Wiring issues such as short to voltage
• PCM malfunction
PCM: Powertrain Control Module, the vehicle's engine management computer.
OBD-II: On-Board Diagnostics, a standardized system for vehicle self-diagnostics.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the Barometric Pressure Sensor C for proper operation.
• Replace the Barometric Pressure Sensor C if faulty.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the PCM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $300
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect and maintain sensor connections.
• Keep the vehicle's electrical system in good condition.
• Perform routine vehicle diagnostics.
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional if unsure.
• Regular maintenance can prevent sensor issues.
Sensor-related repairs may be covered under the vehicle's emissions warranty.
This code has been associated with sensor failures and wiring issues in various models over the years.
Moderate – While the vehicle may still be drivable, it is important to address this issue to avoid further engine performance problems.
Driving with a faulty sensor may lead to increased emissions and potential legal issues in areas with strict emissions regulations.
• Vehicle at operating temperature
• Stable atmospheric conditions
The Barometric Pressure Sensor is typically located on the intake manifold or near the air filter housing.
Q: Can I drive with a P227D code?
A: While you can drive with this code, it's best to address it soon to avoid potential engine performance issues.
Q: How can I reset the Check Engine Light?
A: You can reset the light using an OBD-II scanner after fixing the issue, but it will come back if the problem persists.
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