crappy gas mileage

[Budjr52]

I own a beat up 1994 Geo metro 4 door with an automatic tranny. I have cleaned my egr valve and still the highest mileage I have gotten is 38mpgs on a road trip out of state....most of the time I get between 26 nd 30. can anyone tell me what to check and where the item is to check? I love this little car but I got better mileage out of my subaru forester....HELP!!!

[Wolfman1964]

I read somewhere on here that a bad MAP sensor will cause a decrease in gas mileage. I am going to look into this with mine. I only get about 20 to 22 mpg. I have a 3 cyl. with auto. Hope this helps.

[Budjr52]

can my map sensor be gone and my check engine light not be on? I thought I would have the engine light come on when it goes bad?

[Crvett69]

38mpg is about all you can expect out of a automatic, we had 2 and never averaged better than 38. if you keep speed under 65 on freeway it will get better but never great since the tranny is not a overdrive one

[Budjr52]

I would love to get that....most of the time I am getting around 26-30

[spy1309]

Check your engine compresion to ,that might be for sure one of the causes of low MPG as the engine has to work harder to compensate for lost compresion.

[bambambam]

Mine is an auto as well with the 1.3L. I average about 36mpg, 33 if I really get on it. It's not nearly as good as the guys with 3cyl and manual, but its still tons better than my wife's explorer (18 mpg)

[Budjr52]

mine has the 1.0 3 cyl. working on getting a map sensor and a oxygen sensor. any other hints?

[gumby_ct]

Originally Posted by Budjr52

mine has the 1.0 3 cyl. working on getting a map sensor and a oxygen sensor. any other hints?

How many miles?

[Budjr52]

72000 miles

[bambambam]

Well....I'm far from an expert...but that automatic is gonna hurt your mileage. On top of that you've got a four door, which is a little heavier than my two door. Your mileage is pretty good on the highway...it looks like the stops and starts around town are killing you. Your mpgs probably don't have a lot of room for improvement. Get a good tune up, make sure your tires are inflated properly and drive smart...
Again, I'm no expert...
bam

[gumby_ct]

I agree- automatics tend to loose power & mpg's. Not to mention driving habits. I tend to drive mine hard - she gets much better mileage than me driving the same car.
Guess the real question is what kind of mileage are you expecting to get?

[Budjr52]

I am hoping for at least 35 mpgs...I mean it is a 1.0 3 cyl.....like I said my 2.5 4 cyl in the forester I had got what I am getting now...

[Budjr52]

it is alot better now that I cleaned my egr valve it used to get 22 tops....