I have already changed spark plugs and air filter and no improvement. I want to change those things that are least expensive first.
I understand that the oxygen sensor should be changed, but how often? Is that the next cheapest thing? Honda 2001 CR-V. How many O2 sensors? Where?
What is the four firsts to do to increase mileage.?
make sure correct tire air pressure
drive 60 instead of 65-70
no jack rabbit starts
can of gas treatment - every once in a while to get moisture out of tank
and sparks and air filter which you have done
sorry - don't kow that O2 sensor question
all the best
What is the four firsts to do to increase mileage.?
3 o2 sensors i think CHANGE FUEL FILTER,SPARK PLUG WIRES,DISTRIBUTOR,ROTOR,CAP, ALSO CLEAN FUEL INJECTORS AND CHECK RADIATOR FLUID AND DRIVE NORMALLY