What does code P2402 mean?
OBD-II Code P2402 is defined as a Evaporative Emission System Leak Detection Pump Control Circuit. The Leak Detection Pump is part of the Evaporative Emissions System. After the vehicle has been sitting for a few hours, this pump will turn on and create a vacuum in the EVAP system.
Can you drive with a P2402 code?
How serious is the P2402 engine code? Although you can still drive your car with a faulty evaporative pump, you run the risk of failing an emissions test. A failed emissions test can mean urgent repairs, inconvenience, and fees—so it’s crucial to take care of the problem as soon as you can.
How do I fix this code P2402?
What repairs can fix the P2402 code?
- Replace the evaporative pump and fuse.
- Replace the evaporative pump relay.
- Repair the evaporative pump connector pins for corrosion, melted, or loose connections.
What causes P2402?
What causes the P2402 code? The ECM monitors the EVAP control system pump current and if the current goes higher than specified then the code is set. The evaporative system pump drawing too many amps or high resistance in the power circuit. The system to control the pump motor has a shorted wire harness.
How do you fix an EVAP system incorrect purge flow?
Replacing the gas cap and purge valve are two of the most common fixes for this error code. However, there could be other issues that trigger this code, like disconnected or damaged wires within your EVAP system.
Can you smell an EVAP leak?
One of the most obvious signs that you are facing an EVAP leak is the smell of fuel. The gas you put into your vehicle is liquid, but it becomes a gas form in the system, creating many fumes. The smallest fault in the EVAP system can allow a vapor leak that creates a noxious odor.
Will a bad EVAP canister cause rough idle?
Common signs of a problem with a car EVAP canister purge solenoid include rough idle, difficulty starting, and the Check Engine Light turning on.