P0456 Diagnostic Trouble Code Discussion for August 2018
EVAP System Small Leak
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| Help Request | Posted | |
| 2007 Hyundai Sonata SE 3.3L MIL Lamp on VIN: 5NPEU46FX7 P0456: EVAP System Very Small Leak Detected. upon further testing when using snap on zeus to close vent valve , valve will only seal without smoke machine attached (no pressure applied) when smoke machine is onand pressurizing system vent valve will cycle on off like 1 time per second ? if I manually... |
August 22, 2018 |
