P0442 OBD Error Code: Problem & Solutions

<<See All OBD Codes

The P0442 error code would be present in the vehicles which has small leak in the EVAP system. The ECU would monitor the EVAP system for any leaks or irregularities when a small leakage would be detected in the ECU set a check engine light which would be displayed on the dashboard.

The P0442 is a diagnostic trouble code which would trigger up when there is a malfunction in the evaporative emission control system. This trouble code can be seen in some other EVAP system codes as well.

The P0442 error code can be identified as Evaporative Emission Control System Leak Detected (Small Leak).

What causes this problem with the Evaporative Emission Control System Leak Detected (Small Leak)?

• The gas cap might be loose or improperly affixed
• Issue of a non-conforming gas cap
• A small leak/hole in a fuel vapour hose/tube
• Leakage in the EVAP system
• Defects in the vent O-ring seal
• The vent valve might be faulty
• Some flaws in the purge valve
• The leak detection pump can be defective

1. Purge Solenoid - Do you remember when was the last time you got your car Purge Solenoid checked up? A defective Purge Solenoid can cause a lot of issues like displaying P0442 code.
2. Evap Purge Valve - OBD Code P0442 can appear because of faulty Evap Purge Valve.
3. Gas Tank Sealer - Everything is fine with Evap Purge Valve and still P0442 code triggering? Then you must get your Gas Tank Sealer checked.
4. Fuel Tank - There can be some issues with the Fuel Tank due to which you may see P0442 code appearing over and over again. Visit us to buy best quality Fuel Tank online.
5. Carbon Canister - A lot of issues can arise do to defective Carbon Canister. Did you just see P0442 code flashing? Now you know the reason why it is appearing. Get it inspected and replaced on time.
6. Charcoal Canister - Faulty Charcoal Canister can be the reason why P0442 code is flashing. Visit us to purchase top notch Charcoal Canister online.

Our main motive is to achieve customer satisfaction and that’s why we will help you to diagnose P0442 code by mentioning some major symptoms below:

Common Symptoms

• The check engine light can start appearing
• The fuel economy can start decreasing
• Fuel smell can start coming

If you wish to correct this fault code, then you have to follow certain steps. Correcting a problem needs your careful attention. Here are some ways with the help of which you will be able to correct the OBD Code P0442:

• Replacing the gas cap
• If there are some faults in the fuel tank, then you must get it replaced
• The defective charcoal canister should be replaced
• Make sure to repair or replace the EVAP system lines
• Replacing the purge or vent valves

There is no need to get strained if your OBD Code is still flashing up as we are here at your service. Have a look at our superior variety of Fuel Cap, Cap Auto, Gas Cap, Fuel Transfer Tank, Evap Canister and many more. Now all your problems would vanish within no time.

Here are some steps which you should follow in order to diagnose this fault code:

• Hook up a scan tool to the vehicle's DLC port and check for any codes present
• Then you should examine the freeze frame data associated with the code which shows the circumstances that were present with the vehicle at the time of the malfunction
• The codes should then be cleared up and test drive the vehicle
• The next step would be to perform a visual inspection of the EVAP system, looking for any obviously cracked or broken components, and loose or damaged EVAP lines
• Check for cracks in the fuel tank or charcoal canister
• Inspect the gas cap for proper fitment and condition, then test with a gas cap tester
• Use a scan tool to monitor tank pressure and confirm if a leak is present
• The EVAP system solenoids as well as valves should be tested with scan tool
• Perform a smoke test on the EVAP system, looking for smoke that indicates a vapour leak

Common Mistakes When Diagnosing The P0442 Code

Most of the people forget to inspect the gas cap which gives rise to P0442 trouble code and it can waste a lot of time as well as energy in diagnosing other parts