flyboy1294
Pro basket weaver
Hey guys,
Over the past few months, I have noticed my engine light coming on periodically. One by one I have tracked down the individual causes and fixed them. It was never anything too bad, just little stuff like bad 02 sensors, cracks in vacuum hoses, etc.
Anyway, lately I have had the light coming on randomly after 100 miles ish. It never comes on when the truck is running. I will turn it off, and when I got back to start it sometimes it will be on. It also will go off on its own after 50 miles or so. I will go back to start it and it will be off. This has been going on for a few weeks, and I have never had the light on when I was near anyone with a scan tool so it normally slipped my mind. Well today I had the chance to get the error code read. It comes back as PO452 which is apparently low EVAP pressure.
Any ideas what could be causing this? I don't believe it is a big deal since it comes and goes, but it is annoying after awhile. I appreciate any help.
Over the past few months, I have noticed my engine light coming on periodically. One by one I have tracked down the individual causes and fixed them. It was never anything too bad, just little stuff like bad 02 sensors, cracks in vacuum hoses, etc.
Anyway, lately I have had the light coming on randomly after 100 miles ish. It never comes on when the truck is running. I will turn it off, and when I got back to start it sometimes it will be on. It also will go off on its own after 50 miles or so. I will go back to start it and it will be off. This has been going on for a few weeks, and I have never had the light on when I was near anyone with a scan tool so it normally slipped my mind. Well today I had the chance to get the error code read. It comes back as PO452 which is apparently low EVAP pressure.
Any ideas what could be causing this? I don't believe it is a big deal since it comes and goes, but it is annoying after awhile. I appreciate any help.