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P0455 Diagnostic Trouble Code Discussion for February 2009

EVAP System Large Leak

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Trouble Ticket Help Requests for DTC P0455
Help Request Posted
2001 Volkswagen EuroVan GLS 2.8L No Start, Poor Idle Quality VIN: WV2KB47241
P0455: evap. gross leak. Hey Gang, This vehicle has me stumped, it came in with two evap codes, I checked all solenoids and switches and all fell within factory specs., smoke tested complete evap. system and fuel tank with no problems observed. vehicle runs well at all times except i...
February 05, 2009
2002 Kia Rio Cinco 1.5L MIL Lamp on VIN: KNADC16342
P0455: EVAP System Large Leak Detected. hello I have this kia rio in for an emissions evap code. the car has come back 3 times with the same codes. there is a new tank pressure sensor and vent valve in the car. according to all data the p0452 code says the take pressure sensor voltage drops to less ...
February 09, 2009
2003 Jeep Grand Cherokee Laredo 4.0L Poor Idle Quality, Surge, Cuts out VIN: 1J4GW48S33
P0455: EVAP System Large Leak (0.080") Detected. Thanks in advance for the help. So far I replaced the throttle positioning sensor and that cleared the eratic idle for a little bit. But the volts came back up to 0.57 and the eratic idle came back. I've searched everywhere looking for leaks and haven't came a...
February 19, 2009
2004 Nissan Frontier XE 3.3L MIL Lamp on VIN: 1N6ED29Y14
P0455: EVAP System Gross Leak Detected. to all nissan techs, please help !! p0477 immediately appears after code cleared, checked evap cannister solenoid, has power with key on, seems ecm is not completing ground ? does ecm recieve signal from another source or is ecm bad?? checked solenoid(ok), wil...
February 24, 2009