Max 2k2 computer can KISS MY $^#@%%
11-28-2001, 09:43 PM
#1
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Thread Starter
Join Date: Oct 2001
Posts: 35
Max 2k2 computer can KISS MY $^#@%%
Damn thing is SO OFF. Mpg is off by 5, and thats the start. It tells me tonight I had 20 miles til empty, so I was going to get gas. 2 miles later it was flashing all DASHES so I had ZERO! I was like OH CRAP. I made it to the gas station, light was on E for a while too, I put in 15.5 gallons, tank holds 18.5. Ummm, I think I had like 50 miles left and it was on E, gas light on, and computer said I had ZERO left...damn thats sad.
11-28-2001, 10:45 PM
#2
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Join Date: Nov 2001
Posts: 211
How do you know the MPG is off? Someone earlier was comparing the MPG with their gas receipts, and the deviation was not more than .5 MPG each time ???
And as for the DTE function, I would much rather it err on the side of caution. The tank sensor is only so accurate, dependent on a lot of factors, including the angle of the car, the gas sloshing around, etc. So it probably has a built in margin for error just in case, to keep idiots like you from driving until it says 1 Mile until Empty, and then it happens to be off by one mile and you sue Nissan for millions of dollars because you have nightmares about running out of gas in the 'hood.
And as for the DTE function, I would much rather it err on the side of caution. The tank sensor is only so accurate, dependent on a lot of factors, including the angle of the car, the gas sloshing around, etc. So it probably has a built in margin for error just in case, to keep idiots like you from driving until it says 1 Mile until Empty, and then it happens to be off by one mile and you sue Nissan for millions of dollars because you have nightmares about running out of gas in the 'hood.
11-28-2001, 11:28 PM
#4
Originally posted by 2k2se6spd
How do you know the MPG is off? Someone earlier was comparing the MPG with their gas receipts, and the deviation was not more than .5 MPG each time ???
And as for the DTE function, I would much rather it err on the side of caution. The tank sensor is only so accurate, dependent on a lot of factors, including the angle of the car, the gas sloshing around, etc. So it probably has a built in margin for error just in case, to keep idiots like you from driving until it says 1 Mile until Empty, and then it happens to be off by one mile and you sue Nissan for millions of dollars because you have nightmares about running out of gas in the 'hood.
How do you know the MPG is off? Someone earlier was comparing the MPG with their gas receipts, and the deviation was not more than .5 MPG each time ???
And as for the DTE function, I would much rather it err on the side of caution. The tank sensor is only so accurate, dependent on a lot of factors, including the angle of the car, the gas sloshing around, etc. So it probably has a built in margin for error just in case, to keep idiots like you from driving until it says 1 Mile until Empty, and then it happens to be off by one mile and you sue Nissan for millions of dollars because you have nightmares about running out of gas in the 'hood.
11-29-2001, 06:52 AM
#9
Dyno plot says I have the most area under the Administrator curve
Join Date: Jul 2001
Posts: 7,060
They also might "tweak" it to read a little high and assume that most people wouldn't even check it out, or that they don't even know HOW to calculate mileage manually ( 
) and then give them the false impression that they're getting some kick-@ss mileage 
I've heard the Altima ppl complaining that their mileage readings are way the heck high too, though... Along with their speedometers reading unusually fast (70 when they're really going 60??)
) and then give them the false impression that they're getting some kick-@ss mileage I've heard the Altima ppl complaining that their mileage readings are way the heck high too, though... Along with their speedometers reading unusually fast (70 when they're really going 60??)
11-29-2001, 07:13 AM
#10
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Join Date: Jul 2001
Posts: 45
You would rather have it off by 60 miles? Who's the idiot?
If the thing says empty, and the tank fill is off by 3 gallons, he's got at least that much left...I don't think Nissan really gives a damn who runs out of gas, and for that matter,
GIVE ME AN ACCURATE GAUGE EVERY DAMN TIME AND LET ME MAKE THAT DECISION.
My DTE is also quite off; I allegedly am getting 23mpg, have gone 230 miles so far, and the thing is telling me I have 75 miles till empty. You do the math
If the thing says empty, and the tank fill is off by 3 gallons, he's got at least that much left...I don't think Nissan really gives a damn who runs out of gas, and for that matter,
GIVE ME AN ACCURATE GAUGE EVERY DAMN TIME AND LET ME MAKE THAT DECISION.
My DTE is also quite off; I allegedly am getting 23mpg, have gone 230 miles so far, and the thing is telling me I have 75 miles till empty. You do the math
11-29-2001, 07:40 AM
#11
Yeeeep. I've said it once, twice, three times a lady... err. I mean, several times. The trip computer doesn't work very well. Especially the MPG.
After 3700 miles of computing gas mileage the old way using the same exact pump in the same exact gas station i've averaged only 18.1 MPG to date.
The trip computer still insists i'm doing 23 MPG. Given my usual 14 gallon fill-up won't yield me anything beyond 260 miles before my next fill-up that's proof enough for me that it doesn't work.
So now, i just keep the trip computer on the temperature setting.
After 3700 miles of computing gas mileage the old way using the same exact pump in the same exact gas station i've averaged only 18.1 MPG to date.
The trip computer still insists i'm doing 23 MPG. Given my usual 14 gallon fill-up won't yield me anything beyond 260 miles before my next fill-up that's proof enough for me that it doesn't work.
So now, i just keep the trip computer on the temperature setting.
11-29-2001, 08:42 AM
#13
Senior Member
Join Date: Dec 2000
Posts: 427
When the light comes on and the tank reads empty you have approx. 3.0 gallons in the tank. The 2K1 are the same way. I have never had to fill more than 15.5 gallons in my tank. I think it's done to avoid you running completely dry and messing up the fuel pump.
11-29-2001, 09:04 AM
#14
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Thread Starter
Join Date: Oct 2001
Posts: 35
Originally posted by 2k2se6spd
How do you know the MPG is off? Someone earlier was comparing the MPG with their gas receipts, and the deviation was not more than .5 MPG each time ???
And as for the DTE function, I would much rather it err on the side of caution. The tank sensor is only so accurate, dependent on a lot of factors, including the angle of the car, the gas sloshing around, etc. So it probably has a built in margin for error just in case, to keep idiots like you from driving until it says 1 Mile until Empty, and then it happens to be off by one mile and you sue Nissan for millions of dollars because you have nightmares about running out of gas in the 'hood.
How do you know the MPG is off? Someone earlier was comparing the MPG with their gas receipts, and the deviation was not more than .5 MPG each time ???
And as for the DTE function, I would much rather it err on the side of caution. The tank sensor is only so accurate, dependent on a lot of factors, including the angle of the car, the gas sloshing around, etc. So it probably has a built in margin for error just in case, to keep idiots like you from driving until it says 1 Mile until Empty, and then it happens to be off by one mile and you sue Nissan for millions of dollars because you have nightmares about running out of gas in the 'hood.
The MPG said 24.5 on the computer, and I got 18.5 when I did with my receipts. off by 6 is a waste, why even have the computer then.
11-29-2001, 09:47 AM
#16
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Join Date: Sep 2001
Posts: 129
Re: Max 2k2 computer can KISS MY $^#@%%
Originally posted by SE_Racer
Damn thing is SO OFF. Mpg is off by 5, and thats the start. It tells me tonight I had 20 miles til empty, so I was going to get gas. 2 miles later it was flashing all DASHES so I had ZERO! I was like OH CRAP. I made it to the gas station, light was on E for a while too, I put in 15.5 gallons, tank holds 18.5. Ummm, I think I had like 50 miles left and it was on E, gas light on, and computer said I had ZERO left...damn thats sad.
Damn thing is SO OFF. Mpg is off by 5, and thats the start. It tells me tonight I had 20 miles til empty, so I was going to get gas. 2 miles later it was flashing all DASHES so I had ZERO! I was like OH CRAP. I made it to the gas station, light was on E for a while too, I put in 15.5 gallons, tank holds 18.5. Ummm, I think I had like 50 miles left and it was on E, gas light on, and computer said I had ZERO left...damn thats sad.
11-29-2001, 10:14 AM
#17
Note:
As most fuel pumps are cooled by the gas around the pump, running the tank dry is not good for the pump. You might also run into priming problems when you actually put gas back in.
Since someone says I'm rude, have a nice day guys!
As most fuel pumps are cooled by the gas around the pump, running the tank dry is not good for the pump. You might also run into priming problems when you actually put gas back in.
Since someone says I'm rude, have a nice day guys!
11-29-2001, 11:18 AM
#18
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Join Date: Nov 2001
Posts: 211
Re: Re: Max 2k2 computer can KISS MY $^#@%%
Originally posted by Paul D.
Read your owner's manual, it states quite clearly that when the dte flashes ---- there is still gas left in the tank, so there was no need for surprise.
Read your owner's manual, it states quite clearly that when the dte flashes ---- there is still gas left in the tank, so there was no need for surprise.
Owner's manual??? These things come with an owner's manual???
11-29-2001, 04:00 PM
#21
Not far off of '01 gauges
My fuel gauge on my AE has a similar issue with remaining fuel. I see 1/4 tank to go and then after 10-20 miles I am suddently sitting on empty, practically. Just Nissan making sure you don't run out of gas. 
11-29-2001, 04:13 PM
#22
the DTE is prolly a LIVE reading meaning that whatever MPG you are getting right then and there is what it reads to you based on leaving 2 gallons left. if we all know there are two gallons left when the light comes on work off that. they are helping you out and saving fuel pumps. deal with it baby.
11-29-2001, 05:16 PM
#23
Senior Member
Join Date: Nov 2001
Posts: 963
Visit to Nissan Service RE: Trip Computer
With 850 miles on the 2K2, I brought the car to the dealer. I had a couple of issues, one was the trip computer giving incorrect average fuel usage. The tech working on the car explained that the computer does not take into effect the added fuel needed for cold starts or idling and that this would cause the computer to show a higher reading on the MPG than it should. My speedometer was also tested for accuracy and the speedometer itself exactly matched what the computer showed at its speed sensor (apparently the new Altima has some issues with this). I was also told that Nissan may be aware of the issues with the AVG MPG readings and could be developing a fix for it, but the service department didn't know if this was happening or not.
In conclusion, I guess we just need to adjust in our minds for the AVG MPG. If the computer says 20 MPG, it's really like 16 or 17. If the computer says 28, then it's really like 25.
Just a thought: No one here has yet reported any where near 28 MPG in a 2K2, maybe the "faulty" trip computer is not accident and instead is the way Nissan was able to show that the car rates at 21/28 MPG on the sticker.
In conclusion, I guess we just need to adjust in our minds for the AVG MPG. If the computer says 20 MPG, it's really like 16 or 17. If the computer says 28, then it's really like 25.
Just a thought: No one here has yet reported any where near 28 MPG in a 2K2, maybe the "faulty" trip computer is not accident and instead is the way Nissan was able to show that the car rates at 21/28 MPG on the sticker.
12-01-2001, 09:01 AM
#25
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Join Date: Nov 2001
Posts: 963
Fuel Economy
While browsing the FAQ section, I came across this thread: http://forums.maxima.org/showthread.php?threadid=54826
Apparently keeping the climate control on Auto keeps the AC compressor running. Maybe the trip computer doesn't know how to adjust for this added drain on the engine. I am going to start using the Econ mode all the time unless I need AC or Defrost to see if it makes any difference on fuel economy. If it helps fuel economy then it may also bring the trip computer into line - we'll see!
Apparently keeping the climate control on Auto keeps the AC compressor running. Maybe the trip computer doesn't know how to adjust for this added drain on the engine. I am going to start using the Econ mode all the time unless I need AC or Defrost to see if it makes any difference on fuel economy. If it helps fuel economy then it may also bring the trip computer into line - we'll see!
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