neverdone

Will do, thanks. If the 02 sensor is malfunctioning will that cause the check engine light to go off in a pre-obd2 car?

Thanks, is there any way to check the 02 sensors to see if they are bad? Wouldn't the check engine light go off if this was so?

I have a 1995 ES300 with about 100,000 miles on it. It has mostly trouble free operation except for things like exterior door handles. My issue is though with gas mileage. I am only getting about 200 miles or for a full tank. I don't understand why this has gotten so bad. The car has no check engine light or other major mechanical flaws. I am little cautious to take it some where to be checked because I have been screwed over in the past. Are there any major known reasons why the gas mileage might be so bad? Is there anything major that I should look for or check out that will help determine why it is so bad? Thanks for any advice you all can give.