Cel p0455

[cas951]

The dreadful CEL popped up on my 02S. I've replaced the cap which I ordered through Pelican. CEL came back on a week later. I've reset the code a couple more times and it keeps coming back after a few days of driving.

I took it in to two independent shops to troubleshoot the Evap leak. One Indy is a Porsche specialist and could not find any leak. The other Indy is a Smog specialist. They did a smoke test through the system and could not detect a leak. He reset the Code and replaced with aftermarket cap just to try again. I drove it around and within 6 miles of driving the CEL came back.

I bought another cap OEM from the dealer. CEL did not come on yet but it looks like it will in a matter of driving time. I drove it for over 20 miles at various speeds trying to cycle the OBD. I hooked up my Durametric and checked the OBD readiness status and EVAP status shows as Fail even though the CEL did not come on yet.

At this point I don't know what to do and I need to Smog the car for registration. Any advise would be helpful if anyone have any advise on this.

Thanks