O2 sensors changed on 1991 lincoln cont. but still poor mileage! Why???

Answer 1

OK first it is a V6 3.8L the Conti had only a 3.8 from 88 to 94. it is not huge.
second when did you tune it up?
Do not use Platinum Plugs.
Have you tried fuel injector cleaner?
I suggest Seafoam you can get it at most auto parts stores.
Take the car to Advance and have the Codes read, they do it for free then post your information and get the best answer you will find on the internet.

PS I own two Lincoln Continentals of this vintage and I get 18 city and 24 highway every day all day.

Answer 2

You really want to increase this car's gas mileage and performance. You can save money at the same time. This is done by adding a new fuel reformulator that was just released to the US public a few weeks ago after being tied up in govt. regulations for 10 years. You add a small amount of this formula to your gas tank every time that you buy gas. It increases your gas mileage by 7% to 19%. If you do the math, any mileage increase over 4% saves money in your pocket. It also makes older cars run better. The stuff has been tested by FOX News and NBC News affiliates. Check it out at http://www.saveongasoline.biz . Make sure you click on the MOVIES Tab to see the news reports. You can also get paid for sharing this news with others. Use the money that you make to buy a new hybrid car. Got more questions? [e-mail] Subject: = save gas

Answer 3

in addition to what Steve stated make sure you change the air filter make sure its shifting into overdrive do a complete tune up wires and coils because they get weak over time. Also new injectors are not that expensive so if the injector cleaner doesn't help replace the injectors. Be sure to disconnect battery during the tuneup that will reset the computer.

Answer 4

its a HUGE car 8-cylinder? we're you expecting 20mpg?

Answer 5

try and have the injectors flushed