My 1997 LEGACY 2.2 liter needs a lot more fuel than usual.

F

frankylac

I use to be very happy with my 97 LEGACY with the 2.2liter
engine. Since last fall (about 3 months) my milage per galon increase by
25-30 percent.
I replaced everything I can, such as skarkplugs, air filter, gas filter,
PCV valve, no defect code on computer. Is anybody as an idea of what is
WRONG with my LEGACY ?
 
Could be a bad front 02 sensor, or coolant temperature sensor. Both can
go out of range and cause problems such as poor fuel economy without
setting any codes.
 
I agree with the O2 sensor being suspect. Are you letting say a young son or
daughter drive it????????????????
 

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