Question about 2004 Suzuki Vitara
no engine option stated. hard.
0455 is classic EVAP. failure.
99.9% are loose gas cap or bad gas cap.
tighten it, reset the DTC and drive, comes back, then its real.
EVAP is the fuel tanks , venting system. its a Closed system.
the code means it has leak.
in the smog station the first test is the cap is removed
and a pressure test cap inserted on the filler neck. and
we do the classic, leak down rate test.
if it fails you fail.
not surprising, if the cap is tight and new, and you fail evap
we do that test too, first. omg it does leak.
i then hold a 1/2 rubber hose to my ear and find the leak.
we use pressure at 1-2 psi on the filler neck (shop air and reg)
to apply air, and test the system for leaks.
we use dry nitrogen, for safety but if frisky?, real air works too.
if not up to all that, you can inspect every inch of the system
and might find a cracked or hose that fell off the vents.
Posted on May 04, 2014
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Posted on Jan 02, 2017
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