90 240SX--Just saw some of the capacities--I have NEVER put more then 12.5 gallons in this thing in 2 years? Modified or aftermarket fuel pump? Bad fuel gauge?
Any ideas?
Just noticed this--15.8 gal tank?!?!
Gas gauges tend to be conservative to begin with.
The older a vehicle gets, the more this tendency gets exagerated due to the increase in resistance of the sensor (or something:fruit).
On my older Q's, I had really had to run the needle below E for a good 30 miles, before I was able to put in even 21 gallons (out of a 22.5 gallon tank, a rare event).
Fred...
The older a vehicle gets, the more this tendency gets exagerated due to the increase in resistance of the sensor (or something:fruit).
On my older Q's, I had really had to run the needle below E for a good 30 miles, before I was able to put in even 21 gallons (out of a 22.5 gallon tank, a rare event).
Fred...
Actually on fuel injected vehicles its not as big a deal as it used to be, to run them very low (in contrast to carburated ones).
When I first buy a car I run the gas tank nearly dry and keep minute track of where the needle sits at what mileage.(carry some extra gas just in case)That way in the future I will always have a real good sense how much gas I have in the car and not think I am at a 1/4 when I am really at 40%.However most gas tanks have some dirt on the bottom, so I will change the fuel filter soon after running it <real> low.
I will go out on al imb and give u my best sense of the correct answer, online mechanics feel free to correct me, if I am wrong:
The fuel pump itself has nothing to do with your reading, its primarily the fuel level sending unit (nomenclature?), and/or wires going to and from (resistances).
Fred...
PS: I do not habitually run it real low ,to save oin stress on teh fuel pump, as well as for work related reasons, I like to keep at least a real half tank, which in most older Nissan/Infiniti is an indicated third tank
When I first buy a car I run the gas tank nearly dry and keep minute track of where the needle sits at what mileage.(carry some extra gas just in case)That way in the future I will always have a real good sense how much gas I have in the car and not think I am at a 1/4 when I am really at 40%.However most gas tanks have some dirt on the bottom, so I will change the fuel filter soon after running it <real> low.
I will go out on al imb and give u my best sense of the correct answer, online mechanics feel free to correct me, if I am wrong:
The fuel pump itself has nothing to do with your reading, its primarily the fuel level sending unit (nomenclature?), and/or wires going to and from (resistances).
Fred...
PS: I do not habitually run it real low ,to save oin stress on teh fuel pump, as well as for work related reasons, I like to keep at least a real half tank, which in most older Nissan/Infiniti is an indicated third tank
Fred, you are correct the fuel pump has nothing to do with the fuel level. The factory tries to leave a couple of gal. reserve in the tank to get you to a station. And it is not a good idea to run the pumps dry. They are a wet sump pump and have steel rollers in the drive ends and when they are run dry causes pre-mature wear and damage. NEVER and I mean NEVER check a pump out of a tank by jumping it to the battery out of the fuel . You might as well pull a pin on a hand granade and let the handle fly BOOM_BOOM !!!!