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 fuel pressure is too high. It's like when a balloon is filled with too much air and might pop.
The engine control module (ECM) has detected that the fuel pressure regulator is allowing too much fuel pressure, exceeding the expected limits.
The P229D code is triggered when the ECM detects that the fuel pressure regulator B is not maintaining the fuel pressure within the learned limits. This could be due to a malfunctioning regulator, a blockage in the fuel line, or a faulty sensor providing incorrect data.
• Check Engine Light is on
• Poor fuel economy
• Engine may run rough or have reduced power
• Faulty fuel pressure regulator
• Blocked or restricted fuel line
• Faulty fuel pressure sensor
ECM: Engine Control Module
Fuel Pressure Regulator: A device that controls the pressure of fuel supplied to the engine
• Use an OBD-II scanner to confirm the code.
• Inspect the fuel pressure regulator and fuel lines for blockages.
• Test the fuel pressure sensor for proper operation.
• Replace the faulty fuel pressure regulator.
• Clear any blockages in the fuel line.
• Replace the faulty fuel pressure sensor.
• OBD-II scanner
• Fuel pressure gauge
• Basic hand tools
$150 - $400
Moderate
• Ford F-150
• Chevrolet Silverado
• Dodge Ram 1500
• Regular maintenance of the fuel system.
• Use high-quality fuel.
• Replace fuel filters as recommended.
Engine Performance
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional if you are unsure.
• Monitor fuel economy for sudden changes.
Check with your vehicle manufacturer for specific warranty coverage related to the fuel system.
This code has been associated with vehicles that have high mileage or have not had regular fuel system maintenance.
Moderate – It should be addressed soon to avoid potential engine performance issues.
Driving with a malfunctioning fuel system can lead to decreased performance and increased emissions.
• Engine at operating temperature
• Vehicle at idle
The fuel pressure regulator is typically located near the fuel rail or fuel pump.
Q: Can I drive with a P229D code?
A: It is not recommended to drive for extended periods with this code as it may lead to engine performance issues.
Q: How do I reset the Check Engine Light after fixing the issue?
A: You can use an OBD-II scanner to clear the code after repairs are completed.
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