In addition, which cat are you referring to, there should be two precats off of the manifold and 1 cat underneath the vehicle. The O2 sensor after the main cat underneath the vehicle isn't the key for the gas mileage, that would be the two A/F sensors before the precats.
Sorry but, How many catalytic converters does a 2004 RX330 have? I see two.
Hello everyone, I need your help. I'm only getting under 12 mpg . Mostly city driving. I have the car about a year. Always use super. Water pump/ belt done. No check engine lights on dash . Use liqi Moli for oil. How can I get gas mileage to go up?
Any advice would be very appreciated. Thank you