Code P0442 small evap code that was not cleared by new gas cap

Good morning,

This is a small leak in the system. You will need an advanced scan tool that can access the evap system, a handheld vacuum pump, and a smoke machine for this procedure.

442 for all cars takes time, not just for your car.

Follow the steps and keep me updated with your results.

Roy

Two years later and I finally sorted out the P0442. I noticed a fuel leak from the fuel filler neck while refueling a couple weeks ago. I took off the mounting plate beneath the fuel filler neck and noticed the fuel filler neck was completely rusted out at the bottom. So I ordered a new OEM fuel filler neck from ebay for about $190 with tax and shipping, and that fixed the fuel leak and the P0442. So for anyone with a 2000-2005 Eclipse with a P0442 code, I recommend replacing the gas cap with an OEM gas cap as well as checking the fuel filler neck. This will likely fix the issue for you. Thanks again for your help, Roy.

Hi,

Thank you for that update. I'm glad to hear you found the cause of the problem. A small evap leak can be difficult to find.

Regardless, thanks again and feel free to come back anytime in the future.

Joe