What is the P0442 fault number? What are the causes for the P0442 error code? How do you fix the P0442 fault code What does Evaporative Emission Control Systems Leak Detected Small Leak (Small Leak), mean ?….?
What is the P0442 fault code?
The vehicle’s powertrain controller module continuously monitors the Evaporative Emissions Control System (EECS) for any leaks or other issues. If there is a fuel vapor problem in the EVAP, a fault code P0442 is triggered. The small leak will be indicated by P0442
What are the symptoms for P0422 Malfunction Codes?
A leaking EVAP may not cause any significant damage to your vehicle’s driving performance, unlike other problems. There will likely be one check engine light on your vehicle. You may smell fuel or exhaust fumes depending on where the leak is located.
What are the Possible Causes of P0442 Fault code?
Here are some reasons you might see this code.
- – A loose, faulty or incorrectly installed fuel filler caps
- – Fuel tank caps that do not conform to vehicle manufacturer specifications
- – Leakage of damage to the EVAP system line or hoses
- – A tiny crack or hole in carbon canister canister
- – A defective vent or relief valve (leaking from within)
- – Damaged vent gasket
- – Fuel tank leakage
- Faulty FTP Sensor (Fuel Tank Pressure Sensor)
How to Fix the P0422 Fault Code
Now that you are aware of the possible causes, it is time to learn how you can fix it. You can easily fix this problem.
The easiest solution is to remove the fuel tank caps and reinstall them. After that, use a scanner to remove the fuel tank cap and then drive the vehicle for a few more days. If the code doesn’t come back, it could be the fuel filler caps.
The fuel tank cap could be damaged or not compatible for the EVAP system. You can replace it with the original cap to correct the problem.
If you are unable to fix the problem by tightening or replacing the fuel cap on your vehicle, inspect your EVAP system’s hoses. Check for cracks or tears in the drum, and holes in the fuel hoses. Replace the damaged part if there are any issues.
Sometimes, fiddling around with the fuel filler cap or visually inspecting the EVAP device is not enough to fix the problem. To check for EVAP leaks, you can use an advanced scanner tool. This scan tool can detect leaks that are not obvious to the naked eyes.
You can also check the functionality and safety of the solenoid and EVAP relief valve. You can replace the faulty one with the original one if necessary. You may also need to conduct a smoke test in order to locate the leakage in the EVAP system.
- – Replacing fuel tank cap
- – Replacing fuel tank
- – Change the carbon canister container
- – Replacing EVAP system lines
- – Repair of vent or relief valves
What is the importance of the P0442 Fault Code
Other than an engine fault lamp, the P0442 fault code does not have any negative symptoms. If this code is displayed, it indicates that fuel vapors are leaking into the atmosphere from the EVAP. It is possible to notice an increase in fuel use.
