What a difference!

[equate975]

I finally figured out what was throwing my o2 a while back. Turned out the air pump block off plates didnt get sealed down all the way.

I just noticed today what a difference it made in my MPG. Before I could get 230 maybe 240 miles before the empty light turned on. Today I just finished off my first tank of gas since correcting the problem, I made it 280 miles and the light still wasnt on. I ended up just filling up (11.75 gallons).

This was the milage I was looking for :) I was surprised too because I have had a lot of lead foot driving on this tank.

280 is what I would get with my m20 in the 325i, so I am pretty happy. The s14 only got 19mpg :/

[Jon325i]

280 miles out of an M20 sounds about right. If I really have my foot in it then it just sucks. I've drained a whole tank in less than 150 miles at the track :shock:

Jon

[golde30]

wheres the "air pump"?

[equate975]

http://www.realoem.com/bmw/showparts...40&hg=11&fg=50

Part of the air pump assembly. The thing right to the left of #3, dosnt seem to have a number.

[digger]

280 miles out of an M20 sounds about right. If I really have my foot in it then it just sucks. I've drained a whole tank in less than 150 miles at the track :shock:

Jon

don't think it is a M20 though!

[92 mtechnic cabrio]

suckers! I'm pulling 350 a tank!


.......I have the larger tank haha

[DaveInLA]

I want to find out more about this as well, but I have no idea what that part is.