BMWHIGH1

The strangest thing keeps happening to me, every time I full up which is with premium, my miles till empty keeps going up one week it would be 350, the next week 370 the next week 395, and yesterday was 405 miles until empty, and this has been happening for the last 2 months. Could there be something wrong with my ECU? I mean lately the car has been performing better especial with the a/c on which I find weird. I don't seem to be burning extra fuel or running rich, because I fill up every Thursday and get the same gallons to full up? I do have a check engine light on, which someone said its an crank/cam shaft sensor. Would that have anything to do with it????

oldngivout

iTrader: (8)

You are questioning the performance of your car without first resolving the CEL?

How can that possibly be good?

BMWHIGH1

because i dont want to pay nissan $110.00 to tell me that its has something to do with my abs brake control, now does that sound like it has something to do with gas???

BMWHIGH1

Correct me if i'm wrong i thought the point of this was so we can maybe resolve the issue before we had to take out another loan on the house to pay nissan to fix a problem???

DasYears

no complaining about extra MPG's.

PS: crank/camshaft sensor has NOTHING to do with abs brake control. and if it was your ABS, the ABS light would be on

BMWHIGH1

THANK YOU! You know you guys are really tuff in a good way though

oldngivout

iTrader: (8)

CEL relates only to the engine, typically.

Any Autozone or other parts store can read the code for you for free. Only then can you begin to diagnose your issue. As said before, ABS has its own fault lamp.

CEL illuminates for a reason; its needs to checked, even if the car is seemingly OK.

Kyle00

iTrader: (5)

I think they were just trying to steer you in the right direction. First you have to know the problem to fix the problem. I would say just the others havr said... Get the codes your throwing and go from there

BMWHIGH1

I was also told that autozone codes were universal and that they always throw the same codes, thats what to different nissan dealerships said. Is there some truth to this

DasYears

the only truth there is that nissan techs want you to pay their diagnostic fee

Kyle00

iTrader: (5)

No, I don't think that's exactly true. They'll give you an idea of what the problem is. I've never had problems with it...... and it's free so it can't hurt

BMWHIGH1

The code is po21

SoonerFan

iTrader: (5)

1. we all know that the "distant to empty" is not accurate
2. you dont have to pay nissan to check a code
3. your ECU is fine

SoonerFan

iTrader: (5)

you are missing a digit
do you mean P0021?

the whole list (from the stickies)
http://forums.maxima.org/showpost.ph...&postcount=100

Child_uv_KoRn

iTrader: (7)

the DET isn't accurate (as in there's exactly that many miles left), but it is kind of accurate minus the extra 2.5 gallons that are still in the tank when I fill up lol.

BMWHIGH1

The code is P0021 yes? Do you know what it means? but can anyone explain why the destination to empty keeps getting higher everytime i full up? Pretty soon its going to be 500 dte and then i guess i will be the first one on the org that has a hybrid maxima!!

Kyle00

iTrader: (5)

http://forums.maxima.org/showthread.php?t=348224
Your going to have to do some reading..... and you could have searched your code number. Do that in the future. I don't know about your dte problem though

Kyle00

iTrader: (5)

WTF? I just realized Soonerfan already gave you the number and everything...... You need to

Sunfishsailboat

Why not buy an OBDII from a Pep boys, Sears, etc... You can reset the codes. Also, with the right model, you can find out what the codes mean. Its worth the money about $110 to $170. Buy it for your Nissan and it can be used in cars from 1994 going forward. Its worth the bucks!

BMWHIGH1

No i put P021. He correct me by saying " I mean P0021" my response to that was the code is P0021 yes!

Kyle00

iTrader: (5)

He gave you the link to the stickies (which you failed to look at obviously). The stickies are there for a reason. All you had to do was search "P0021" and you would've got your answer on everything about that code. That's all i'm saying. If you can't do any amount of research yourself on your problem....... Good luck.

BMWHIGH1

HEY DONT TAKE THAT TONE WITH ME