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 when the car is started cold, the fuel pressure is too high on one side of the engine. It's like having too much water pressure in a hose when you turn on the faucet.
The engine control module (ECM) detects that the fuel pressure is higher than expected during a cold start on bank 2 of the engine.
The P15EE code indicates that the fuel pressure on bank 2 is exceeding the specified limits during a cold start condition. This can be due to issues with the fuel pressure sensor, fuel pump, or related components that control fuel delivery.
• Check Engine Light is on
• Poor fuel economy
• Rough idle during cold start
• Faulty fuel pressure sensor
• Malfunctioning fuel pump
• Fuel pressure regulator issues
ECM: Engine Control Module, the computer that controls engine functions.
Fuel Rail: A pipe that delivers fuel to the injectors.
• Use an OBD-II scanner to confirm the code.
• Inspect the fuel pressure sensor and connections.
• Check the fuel pressure using a fuel pressure gauge.
• Replace the faulty fuel pressure sensor.
• Repair or replace the fuel pump if necessary.
• Inspect and replace the fuel pressure regulator if defective.
• OBD-II scanner
• Fuel pressure gauge
• Multimeter
$150 - $500
Moderate
• Chevrolet Silverado
• GMC Sierra
• Cadillac Escalade
• Regular maintenance of the fuel system
• Use high-quality fuel
• Inspect fuel system components periodically
Engine Performance
• Avoid driving the vehicle until the issue is resolved.
• Consult a professional mechanic for an accurate diagnosis.
Check with the vehicle manufacturer for any applicable warranties on fuel system components.
This code has been associated with cold start issues in vehicles with direct fuel injection systems.
Moderate – Addressing this issue promptly can prevent further engine performance problems.
Driving with a fuel system issue can lead to reduced performance and increased emissions, which may not comply with vehicle emission standards.
• Engine must be cold.
• Vehicle should be parked in a safe location.
The fuel pressure sensor is typically located on the fuel rail on bank 2 of the engine.
Q: What does 'bank 2' mean?
A: Bank 2 refers to the side of the engine opposite bank 1, which contains cylinder 1.
Q: Can I drive with a P15EE code?
A: It's not recommended to drive with this code active as it can lead to further engine issues.
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