damn, I'm only getting like 10 - 12mpg if I'm lucky. That's so sad. I could put a 350 in and get better gas milage over my v6

 

I get about 15mpg in the city, and 20 highway... if I'm lucky

REBUILT MOTOR, new wires, new coil, new plugs, new EGR, new air filter, new oil/filter, new fuel filter, new distributor cap, and a brand new computer...

I cannot think of why I'm not getting anywhere close to the suggested MPG of this vehicle....

I cruise on the highway at 85ish at about 2300-2500 rpm.... seems mighty low... in fact, my mileage almost doesn't change from 2000-2800rpm... 70mph to 100mph.... very strange to me.

 

Check Tire Pressure
Get Fuel System Cleaner

 

I wonder if my catylitic convertor could cause this?

what about people who take apart their intakes and clean the carbon out, does that make a huge difference?

I just calculated my mpg on the highway as being 16mpg yesterday.... that's absurd!

 

Hmmm...many people on this board say their mileage is down big time to what they should be getting,including me.I get about 210 miles per tank...Pretty Horrible....I gave up looking for the problem.A clogged cat will cause lose of power and economy.Check it out.I replaced my entire exhaust with Dynomax and Magnaflow high flow cat.Yet no increase in MPG.

 

I was just thinking... if the intake was clogged with carbon, wouldn't you simply lose power, but get better mpg, since you can't burn as much fuel? or are you just going to be putting more unburnt fuel into the exhaust?

 

I doubt it would be clogged so much it would actully prevent air from entering the engine.

 

by clog, I mean restrict. not completely blocking but lessening the overall available air to the engine... wouldn't that actually lower power output, and also gas input?

 

I thought gas was controlled by how open your throttle body is, not by the actual amount of air coming in. If that's the case then that'll just dump too much gas into the intake unless there's something I don't know which I'm sure there is all kinds I don't know.

 

isn't that what the MAF is for? if you are getting less air, your computer knows and adjusts fuel settings.

 

We dont have MAF's

 

there is some sensor in the air filter area, I'm sure of it

some air flow sensor of some kind

 

It's the Air Temp sensor

 

can't the MAP sensor tell you have lack of air, because the pressure in the intake is lower?