19MPG to 30MPG+

[AndrzejM]

Oxy sensors have big impact on FE, especially the faulty ones
Congrats on fixing your ride!

[oil pan 4]

I was looking around the under belly of the car today and found that it had an air dam at one time.
Looks like I should try and find or make one.
A nice big air dam should be worth at least 1mpg on the highway and should fix the slight running hot problem it has in traffic.

[hawk2100n]

Looks like you solved your problem with the O2 sensors however if you continue to run into problems, do a search for the spark plug non fouler - O2 sensor trick. Very simple to do. They add a some standoff to the oxygen sensor by pulling it out of the exhaust flow and make the car think the cat is working. My car had the cat removed by a previous owner and that was able to get the CEL to stay off for 40k miles.

[oil pan 4]

Originally Posted by hawk2100n

Looks like you solved your problem with the O2 sensors however if you continue to run into problems, do a search for the spark plug non fouler - O2 sensor trick. Very simple to do. They add a some standoff to the oxygen sensor by pulling it out of the exhaust flow and make the car think the cat is working. My car had the cat removed by a previous owner and that was able to get the CEL to stay off for 40k miles.

I don't like mods like that to be at all visible from the outside.
Usually what I do is cut a little peice of sheet metal and bend it into a cylinder and slip it around oxygen sensor to block most of the exhaust flow going into the sensor.