Question about 2000 Toyota Avalon
2000 avalon xls;150k mi.;codes pulled by auto zone;only notable performance difference is lower gas milage.
I looked up the codes you posted.
P0420 is showing a bad oxygen sensor on bank #1, the one down by the catalytic converter.
P0773 is an electrical problem with the shift solenoid E.
A bad oxygen sensor would cause lower fuel milage.
Posted on Mar 11, 2009
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Posted on Jan 02, 2017
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