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Just wanted to say i am new here and need some help.I am working on my sisters 2005 chevy aveo.She having two issues the first issue is not haveing good gas millage and the second issue is its not shifting right .She took it somewhere to get the codes pulled here they are p0445,p2610,p0449.Any help would be good.
Welcome to the site blacklabel21!
Lets take a look at your codes:
It looks like these two are related. I'd probably start by looking at and probably replacing the purge control valve.
p0445 = Evap. Purge Control Valve Circuit Shorted
p0449 = Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction
I would wait until you get the evap stuff figured out to address this one.
p2610 = P2610 ECM/PCM Internal Engine Off Timer Perf