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 thinks the air pressure outside is too high. It's like when your ears pop because you're going up a mountain, but the car thinks it's happening when it shouldn't.
The P1164 code is triggered when the Powertrain Control Module (PCM) detects that the barometric pressure sensor 'B' reading is higher than expected.
The barometric pressure sensor measures the atmospheric pressure and helps the engine control module (ECM) adjust the air-fuel mixture for optimal performance. If the sensor reading is too high, it can indicate a problem with the sensor or the circuit.
• Check Engine Light illuminated
• Poor engine performance
• Reduced fuel efficiency
• Faulty barometric pressure sensor
• Wiring issues or poor electrical connections
• Faulty PCM
PCM: Powertrain Control Module
ECM: Engine Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to confirm the code.
• Inspect the barometric pressure sensor and its wiring.
• Test the sensor with a multimeter for proper voltage.
• Replace the barometric pressure sensor if faulty.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the PCM if necessary.
• OBD-II scanner
• Multimeter
• Screwdriver set
$100 - $300
Moderate
• Honda Accord
• Toyota Camry
• Ford F-150
• Regularly check and maintain sensor connections.
• Ensure the vehicle's PCM is updated.
• Perform regular vehicle diagnostics.
Sensor Issue
• Have a professional mechanic diagnose the issue.
• Do not ignore the Check Engine Light.
• Regularly maintain your vehicle's sensors.
Check with your vehicle manufacturer; sensor issues may be covered under emissions warranty.
The P1164 code has been associated with faulty barometric pressure sensors in various vehicle models over the years, often due to environmental exposure.
Moderate – While the vehicle may still operate, performance issues can arise, and it should be addressed soon.
Driving with a malfunctioning sensor can lead to increased emissions and may not comply with local emissions regulations.
• Ensure the vehicle is at a stable altitude.
• Verify the engine is at operating temperature.
The barometric pressure sensor is typically located on the intake manifold or near the air intake system.
Q: Can I drive with a P1164 code?
A: You can drive, but it's best to get it checked soon to avoid potential engine performance issues.
Q: How do I clear a P1164 code?
A: After repairs, use an OBD-II scanner to clear the code, but ensure the issue is resolved first.
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