I have a 2001 Wrangler Sahara and the Check Engine code P0455,
is poping up on the Diag check. It say's that is might be the Gas Cap,
here's to hoping it will be that cheap.
When I bought it back in Florida, the service tech said, they replaced
the Cat Converter, and the light came on. I was not worried about it at
that time as, Fla does not have a yearly Inspection, but Texas does.
With this being on, I can not get it registered here, until it is fixed.
The code states: p0455
which is EVAP emissions control system leak detected (no purge flow or large leak).