Re: 01 Highlander fuel issues
It sounds like you have the same exact vehicle, an 01 4-cyl highlander with around 100K. We typically drive it around because it gets better mileage than the Tundra. The HL usually gets the advertised mileage, around 24 in town. I can get around 350mi in town and around 400miles on the highway on a tank of gas.
When we go camping, we take the Tundra because it gets 18MPG without the trailer and 17 with the trailer. The HL gets 25 without the trailer and 19 with the trailer. In that case fuel economy is a wash, so the extra room in the Tundra wins out.
The mileage has been the same since we bought it. All of the O2 sensors have been changed because a faulty ECU kept throwing codes saying that the O2 sensor was bad. In the end the ECU was replaced.
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