Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!





Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!

Are you shopping for a new car and having a hard time finding what you want or did you recently buy a car but had to settle for something different than what you originally wanted? A reporter wants to speak with you; please reach out to [email protected] by 10/22 for more info.

P0420 code on 2005 Elantra. The CEL is Off.

nickv41nickv41 Posts: 1
edited June 2014 in Hyundai

My CEL came on a few weeks ago. I did not own a scan tool so I ordered one. By the time it arrived, the CEL light turned off. Great news. I plugged in the scan tool not expecting to find any codes but I did get a code P0420 "emission system not operating to full efficiency."
Since the CEL light is not on, I'm wondering if I should just erase the code or leave it alone. If I leave it alone will the car pass inspection if the CEL is off?

Sign In or Register to comment.