Dealing with P0455 code right now. Already changed the gas cap and i removed the purge valve and cleaned it out.Still getting code.This might be a stupid question but should air flow throw the little purge valve? i shot throttle body cleaner in it and blew in it and it did not flow through...but maybe its not suposed to.
Just asking before i order my Hyundai part.
Thanks for any info.

 

I went through all of this recently and I too kept getting the purge valve check engine code. I cleaned it and was still throwing the code hours later after cleaning. I have since replaced with the hyundai part and I am going on a little over a week now without the code returning.

 

OK thanks, did you try ot clean it out? AS I said i'm just curious if air and liquid shouldf be able ot get through it. I'll probably just buy tyher part. I just hate throwing money at things. Let me klnow your progress please, thanks for gthe reply.

 

A heads up on the Autozone purge valve which some have recommend in previous threads. I got the P0445 code a couple of months ago. I replaced mine with the new Autozone purge valve and a new genuine LR gas cap a couple of months ago. The P0455 code still kept on appearing. I ended up going to a genuine LR purge valve and the code went away. It could be the Autozone unit was simply a defective one. Just wondering if others had used an Autozone version with success.

 

Just replace the purge valve. It's $60. I went through this a couple months back. Replaced the gas cap and that helped for a bit. But then 0455 came back steady. So I replaced the purge valve with the hyundai part and have no code in several months.

 

Im having the same issue, P0455. Found this video on how to change it with a cheaper hundai part: How to Fix A Check Engine Light : P0455 Emissions Purge Valve Replacement | Auto E-Clinic

 

also replaced with the Hyundai purge valve. code has not returned. real simple replacement, I'm a fairly shady shade-tree guy and I had no troubles doing it.

 

Make sure you use the Hyundai part, the Autozone part is ****e.

I went through two before buying the Hyundai version which has worked flawlessly since.

 

Do you have the part number for this Hyundai purge valve?

 

Hyundai purge valve part# 28910-22040