How fix po446 evaporative emission system vent contril circuit if can't how much on 2002 Toyota Tacoma

Did tune up 800 miles ago including file filter I have 141680 miles it stalls at gas pump, no leaks on hose but still runs good

by in Florissant, MO on January 10, 2012
1 answer
ANSWER by on January 10, 2012
you need a shop with a scan tool, smoke machine and voltmeter to determine the failure. evap codes are not an easy fix. it requires a lot of time to track the failure. Roy
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Did tune up 800 miles ago including file filter I have 141680 miles it stalls at gas pump, no leaks on hose but still runs good