|08-25-2012, 07:08 PM||#1|
Drives: 2010 RS Inferno Orange Metallic
Join Date: Mar 2010
Location: Albany, Ga.
dianogstic code p 0497
P0496 EVAP Flow During Non-Purge Condition
OBD-II Trouble Code Technical Description
EVAP (evaporative emission) Flow During A Non-Purge Condition
What does that mean?
The P0496 DTC code is a generic code which applies to all vehicle makes. A quick search on the 'net shows that this code seems to be more common with GM (Chevy, Pontiac, etc.) vehicles. In Acura, Honda, Hyundai, Kia, and Mazdavehicles, this code is described "EVAP system high purge flow" which is the same thing.
This DTC checks for undesired intake vacuum flow to the EVAP system. The control module seals the EVAP system by commanding the EVAP canister purge solenoid valve OFF and the EVAP canister vent solenoid valve ON. The control module monitors the fuel tank pressure (FTP) sensor to determine if a vacuum is being drawn on the EVAP system
If vacuum in the EVAP system is more than a predetermined value within a predetermined time, this code is set and the MIL (malfunction indicator lamp) is illuminated.
Symptoms of a P0496 DTC will include MIL illumination, and most likely no other noticeable symptoms. Some may experience a hard start / crank condition. In some cases the engine may run rich which may not detected, but can cause damage long-term (think: catalyticconverter damage).
Potential causes of a P0496 EVAP code include:
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