i was just reading about the guy who was scared to make a long trip with his car and i was thinking man i can sure relate but the whole thing i could not relate to was how 20 miles to the gallon i have an 89 iroc 350 tpi and i put 2 gallons of gas in it and put only 4 miles on it before it was out of gas please help what is wrong i would be happy with even 15 miles to the gallon i really can not afford gas like my car wants it !

 

If your only getting 2 mpg your in deep trouble. My guess is your gauge just moves alot when down that low. Fill it up then drive until you get low, see how much gas it takes to fill it back up and divide the gallons by the miles driven in that time, you will find out your true mileage.

 

that is my true milage my car wont even start it is completely out of gas after 4 miles! how could that even be posible? you can tell it doesnt burn it all when you stand behind my car rich is an understatment you cant even keep your eyes open or escape the migrain you will nave in about 20 minutesfrom the fumes!?!?!

 

I woudl say you have a leak. Get under the car check your tank, fittings, lines, fuel filter, if you changed any of this recently start there. Unfortunatly since gas evaporates and doesn't always leave a trail like oil you may have to put some more in and find it that way. I don't see how its possible to burn that much fuel.

 

already checked and replaced all that even had shop do some kind of leak pressure test all came clean. it has to be somthing with my motor i checked to see if gas was getting into my fluids but its not.what senors or accesories would have anything to do with fuel consumption?i love my car and do not want to lose it but i dont know what to do with it. please help.

 

The fuel delivery system is pretty straight forward. The MAF, TPS, even the O2 sensor all play a role in leaning out or richening up your fuel air ratio. I don't see any of these as a possible source. I also can't imagine that much fuel being dumped into your cylinders and burning. I mean 2 miles per gallon is ten times more fuel being consumed than normal, I don't think your engine would even run eating that much fuel. If I were you I would put more fuel in it carry a spare can test it again and see whats going on. If its still going through fuel and the possible leak areas have been assesed put it on a diagnostic machine and see what kind of readings you get. Sorry not much help. If you figure it out let me know, scratching my head

 

still not getting better but i will keep you guys updated if you figure anything else out tell me.