I recently had the check engine pop up a couple times and thought Gas cap was bad since I saw a crack on the rubber seal. Now that I replaced it I got the code again. Not too much of a mechanic but if someone can lead me to the right part or section of the engine we’re the evap hoses are I would appreciate it. Don’t see much residue on the hoses and not sure which ones to inspect thoroughly

 

The red line is the EVAP hose route from the canister.

 

Thanks found the crack!! Now is there a specific part number for that hose? Or can I just go to any shop and cut a piece for it?

 

The hose will be metric. Most hoses will be standard fitment at the auto parts store. I would order from the dealer to get the exact hose. It needs to handle fuel fumes, and and not collapse under vacuum. For now you can unhinge the clamp, and maybe wrap the hose with duct tape. That would probably seal the leak for now. Until you can source a replacement.

 

https://www.lexussouthatlantaparts.c...&searchString=

 

Thanks for the feedback and will do that for now temporarily! I figured there had to be an oem part just the way the hose is angled too.

 

I just received the same error code / Check Engine Light / VSC Light on my 2006 LS430. My understanding from a mechanic friend is that this is either caused by a loose gas cap, bad purge valve solenoid or charcoal cannister leak. At any rate there could evidently be a leak somewhere in the system. He told me to check the gas cap first and the purge valve solenoid and reset the codes. I'm going to attempt to check the valve but not sure if I'm doing it correctly. Couldn't find a youtube video specifically for the 2006 LS430. Does anyone have additional guidance?

Thanks!

 

Try taking a pic of your engine bay. I’m sure someone can lead you to the right direction. Could be simple as the gas cap o ring already brittle. Mine was a hose and you can’t even see it till you depress the locking mechanism. After that still no issues found.

 

Thanks Israel - I found the purge valve (solenoid) and it appears to be working fine. I lubed up the gas cap seal with some vaseline and then erased the code with my scanner. I guess we'll see what happens next and fingers crossed. If it comes back I guess we'll be going to the shop/experts next for repair. I guess there's a way to do a smoke test where you inject smoke into the gas tank and see where it's leaking from along the line but in my case that sounds like a recipe for disaster!

Victorjohn

 

Hey I have a 2007 Lexus LS460 and am getting the code P0456, I tried getting a new gas cap and clearing the code but it just came back. Has anyone had this problem?

 

Just clear it and move on, no big deal. Then wait for the next CEL and figure out what kind of driving you did, maybe you will figure something out. And if it does not show up, then just chill.