Review on Denso 234 9057 Fuel Ratio Sensor by Pete Hahn
Improve mysterious MPG drop without check engine light.
Fix the mysterious MPG drop with no check engine light on my Lexus ES330 with 261,000 miles (3mz-fe). After doing everything the blogs recommended, I finally spent the money to replace all the O2 and air/fuel ratio sensors. Now 267 kmpg is back to 22.3mpg in a week.
- Installation Type: Vehicle Specific
- Modern
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