check engine light on '02 Elantra OBDII PO455

Hyundai Forum Hyundai Classifieds Photo Gallery Member List Calendars Search Contact HF Sponsors
Hyundai Lineup Hyundai News Hyundai Recalls TSBs Timeslips Register Login

check engine light on '02 Elantra OBDII PO455

Printable Version

Hyundai Forums >> General Hyundai Forums >> General Tech Help >> check engine light on '02 Elantra OBDII PO455

Page: [1]

Message

<< Older Topic Newer Topic >>

check engine light on '02 Elantra OBDII PO455 - 7/12/2006 2:12:52 AM

elantrai

Posts: 4
Status: offline

My check engine light came on and I got it to read on an OBD II and it came back as a "PO455-EVAP Emission Control System Leak (Large)." Car-2002 Elantra seems to be running fine at this time. However, there is an audible "vacuum leak" that the parts guy pointed out when the hood was up coming from the rear of the engine area. Any hints or solutions would be appreciated. THANKS.

Post #: 1

RE: check engine light on '02 Elantra OBDII PO455 - 7/25/2006 9:46:13 PM

hyundai tech

Posts: 137
Joined: 6/7/2005
Status: offline

The vacuum leak under hood is probably pcv hose.They go south alot on older vehicles.Po455 is basically a large leak in the evap system.Some say its a gas cap and roll it out the door.In order to have this leak properly diagnosed you have to connect a low system pressure tester to the evap system and test to see if pressure drops.These are factory tests.You can have a quick test done at your local dealer for a evap leak using the high scan pro.It is not always accurate as the low system pressure test.If you clear the code and it re-occurs you need to have this addressed as for most states wont pass a state inspection without vehicle passing readiness tests in pcm.

(in reply to elantrai)