P2402
What is the most common cause for this default code? I have already had my hoses replaced by my dealership and the check engine light is back on the P2402 -EVAP Leak Detection Pump Control Circuit High. Do I most likely need a new N80 purge valve?
Thank you.
My car has 74000 miles.
My car has an automatic transmission.
Experienced mechanics share their insights in answering this question :
Hello and thanks for your question. The code P2402 is usually caused by EVAP control system pump current goes higher than specified. The evaporative system pump could be drawing too many amps or the pump motor has a short in its wiring harness.
First, you will need to check to see if there is any fuses that are blown. If there are fuses blown, replace them and recheck the Engine Light.
Next, check that evaporative pump relay for if it is working. Check for any corrosion on the contacts to the relay. If there is no corrosion on any part of the circuitry to the evaporative pump relay and the evaporative pump harness, the relay is functional, and the fuses are in good shape, then you would need to replace the evaporative pump. I recommend having a certified professional, like one from YourMechanic, diagnose the Check Engine Light and pinpoint the correct repairs that need to be made.
How to Identify and Fix Common car Problems ?
Our sources include academic articles, blog posts, and personal essays from experienced mechanics :
What Is the P2402 Code? Can I Still Drive? P2401 and P2402 codes indicate that there`s an issue with your evaporative emissions (EVAP) system. The “Leak Detection Pump” is part of the EVAP system, testing for system leaks and blockages to ensure that the system is working as intended.
If your car is showing a P2402 code, your car`s evaporative pump (also called a leak detection pump) is drawing too much power. and you fail emissions testing, there`s probably an issue with your car`s evaporative pump.
What the P2401 code means. The P2401 trouble code is telling us the EVAP control circuit has had a fault with the leak detection pump. The leak detection pump is used by the ECM to pressurize the EVAP system to check for leaks that are present.
OBD code P2402 means Evaporative Emission System Leak Detection Pump Control Circuit High.
What Does Volkswagen Jetta Code P0456 Mean? Volkswagen Jetta P0456 definition: Evaporative emission control system leak (small). Repair Urgency: Get this fixed within the next month to prevent drivability problems and excessive fuel consumption.
Start the engine and idle for four minutes, then drive in stop-and-go traffic for five minutes using smooth accelerations and decelerations. Stop and idle for 4 minutes. The EVAP monitor should be complete.
What the P2422 code means. The P2422 diagnostic trouble code is an indication that the vent valve of the evaporative emissions control system (EVAP) is stuck closed. The EVAP system reduces harmful pollutants, generated by the engine combustion process, from being expelled into the environment.
What Does the P2450 Code Mean? Diagnostic trouble code (DTC) P2450 stands for “Evaporative Emission System Switching Valve Performance/Stuck Closed.”
The trouble code P2450 can be explained as Evaporative Emission System Switching Valve Performance/Stuck Open. This diagnostic fault code is a generic powertrain code, which means that it would apply to the OBD-II equipped vehicles.
An EVAP leak can cause a variety of issues, including a decrease in fuel efficiency, an increase in emissions, and a decrease in engine performance. If left unchecked, an EVAP leak can also cause damage to the catalytic converter, which can be expensive to repair.
Volkswagen has decided that a defect, which relates to motor vehicle safety, exists in certain 2015- 2016 model year Volkswagen Golf, GTI & Golf SportWagen vehicles. Our records show that you are the owner of a vehicle affected by this action. evaporative emissions (EVAP) system may have been damaged during assembly.
Error Code P0440 indicates a malfunction with a vehicle`s EVAP system. This means that the vehicle`s engine control module (ECM) has detected a leak in the fuel tank vapor system or that a vapor pressure sensor has malfunctioned.
The EVAP system leak error means the sensor detected the Evaporated fuel in the gas tank is leaking. If this fault is detected multiple times, it is recommended to have the vehicle serviced by a mechanic to resolve the leak.
While EVAP problems don`t generally lead to vehicle damage, the fact that they trigger the Check Engine light can mask other more serious problems if left unaddressed. After all, there are hundreds of conditions that can trigger a Check Engine light, but there is only one light.
P0442 is a diagnostic trouble code (DTC) for “Evaporative Emission Control System Leak Detected (Small Leak)“.
The national cost for a fuel evaporative canister replacement in 2023 is between $80 and $581 with an average of $183.
If done correctly the codes will clear themselves and the light will not come on until another problem comes up.
The P2420 trouble code indicates that the Engine Control Module (ECM) has detected a malfunction within the switching control circuit of the EVAP control system of the engine. The EVAP system consists of multiple parts related to the intake, fuel, and exhaust of the engine.
The leak detection pump, also known as the EVAP system integrity module (ESIM), is Mopar Part No. 4861962AB for your car. The ESIM is an emissions control device and is typically mounted on the vapor canister in the rear of the car or very near to the canister.
What common symptoms indicate you may need to replace the Leak Detection Pump? The check engine light or the malfunction indicator light turn on if there`s an issue with the Leak Detection Pump. A diagnostic trouble code should register in the vehicle`s memory because of a poorly working pump.
As its name suggests, a leak detection pump detects whether there`s a vapor leak along any part of the fuel system. It works as part of the EVAP, which collects these vapors with charcoal canisters, and reintroduces them into the combustion chamber.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
P2402 code, Evap system warning and the leak
ANSWER : This is a fault for the evaporative emissions pump control circuit. This can mean the evaporative emissions pump is faulty. The evaporative emissions pump needs to be checked for function and then the evaporative emissions system needs to be checked for leaks caused by either a evaporative emissions valve or a faulty EVAP system connection. The system is commonly checked with a smoke machine to detect leaks. You may want to enlist the help of a mechanic, such as one from YourMechanic, who will have the equipment and training to diagnose your Check Engine Light further and repair any leaks that are present.
Read Full Q/A … : P2402
Code p2402 evapotative emission system leak detection pump control circuit high.
ANSWER : In many cases a control circuit code will point out a problem with the device in the description which is the leak detection pump assembly in this case. The evaporative emissions system should be checked for any air leaks or broken hoses that may have allowed dirt or water into the leak detection pump. The leak detection pump can generally be found on the evap charcoal canister and the whole assembly will have to be replaced. Consider hiring an experienced technician like one from YourMechanic who can come out and take a closer look at the check engine light data and the car to offer a more personal diagnosis.
Read Full Q/A … : P2402
P2402
ANSWER : Hello and thanks for your question. The code P2402 is usually caused by EVAP control system pump current goes higher than specified. The evaporative system pump could be drawing too many amps or the pump motor has a short in its wiring harness.
First, you will need to check to see if there is any fuses that are blown. If there are fuses blown, replace them and recheck the Engine Light.
Next, check that evaporative pump relay for if it is working. Check for any corrosion on the contacts to the relay. If there is no corrosion on any part of the circuitry to the evaporative pump relay and the evaporative pump harness, the relay is functional, and the fuses are in good shape, then you would need to replace the evaporative pump. I recommend having a certified professional, like one from YourMechanic, diagnose the Check Engine Light and pinpoint the correct repairs that need to be made.
Read Full Q/A … : P2402
