I been hearing about people replacing their maf which made a noticeable improvement in terms of performance. Now I think my stock maf is fine but I decided to upgrade to the updated version anyway. Just installed it today and right away I notice better throttle response and performance. My car also seem to idle quieter as well. The part # for the updated maf is
22680-2Y001...

 

WORD. New MAFs are a beautiful thing.

 

yesterday was the second day I drove my car with my new maf. Before whenever I use my AC the car seem to be lagging and running slower then normal. But yesterday during a high 80's day with AC on the car still ran good with more power and no lagging what so ever. I'm glad I finally switch to a new maf because my old one must have been starting to died but I didn't get any cel.

 

did you replace it with a 2001 MAF?

 

Exactly, what do you mean by updated MAF?

 

The 22680-2Y001 is a 2001 MAF....

 

Hi, guy's i need some help with my SES light it came on driving home last night from work 2001 54,000 miles the car seems to be running fine does this mean something is really wrong or should i just get it reset the only thing i did was put a stock K@N air filter in it and always run 93 for gas

 

also is that MAF hard to replace on the 2001

 

my friend and I replaced it in less then 30mins...you just need the right tools that's all...

 

So what abourt the ses light i just discounted the battary and reset the light if t comes on again i'll have autozone pull the code

 

If your MAF is plugged in when you start the car there shouldn't be a CEL. If there is then you probably should get the code pulled.

Also, unless your MAF is blown or significantly dirty a new MAF will make only negligable differences in performance. When my '00 MAF blew I knew it had and the difference between the old and updated was night and day.

 

Does this work on 2k2's??? I think mine is fine too but I wouldn't mind trying one just for giggles.

 

Ok so your saying the light wouldn't come on if the MAF was bad i mean the car is still very fast

so i did rest the SES light if it comes back on i'll pull the code

 

From my personal experience there was no CEL for the MAF if it goes bad. I do know that the light will come on if the car is started without the harness connected. I think your plan sounds fine.

 

Thanks man i'll try that

 

where's the cheapest maf to get the "updated" Maf... isn't that model # a 2001 Maf?

Well anyways.. I think my Maf is going bad soon cuz the acceleration is weird sometimes and I think a new MAF wouldn't hurt if it's cheap :-D

 

Yes, but you need to transfer the IAT sensor from the 2k2 MAF to the 2k1.

http://forums.maxima.org/showthread....&highlight=iat

 

Progress : i have a question for you, so my SES light came back on today i want to auto zone and they pulled the code P0158 o2 senser
P0158 - Heated Oxygen Sensor 2 Circuit High Voltage (Bank 2)
there were there codes all the same number p0158 i call nissan and they said it's the one front left red wire also can you confirm thats the right senser for that code number

 

Go to page 5 to find out where the sensors are and which is which:

http://maxima.theowensfamily.com/tsb/NTB02-051a.pdf

 

you will also need an ecm update as outlined in the tsb


Where is the part number located on the maf's. I have a 2001 maxima, so I am hoping I have the "best" one on there rather than the "better" one.

 

Is it really necessary? Epacy and some others didn't get an update and they seem to be fine.

Its on the housing...



Or on the box...

 

It does not seem like you need an update for the 02 sensor replacement. I hear the update does widen the allowable range input from the sensor thus accepting broader values without popping a CEL.

I still haven't received any 02 related codes sine I replace mine and just reset the ECU.

 

I think I remember reading that as long as you have emissions warranty, nissan has to update your ecu for free.

 

I'm at 60k and the dealership is charging me ~$100 to reprogram the ECU.

How long is the emissions warranty good for?

 

Ok so i Just repalced my O2 sener on my maxima 54K should get ready to do the other 3

 

today i was driving and i noticed my car felt like it was being held back and it would bog down and not accelerate for squat/?MAF problem you guys think?? I just put on my Cattman intake on friday night and it ran fine all night friday and ran fine sat when i drove it. But today when i took it out when i would press the gas hard or WOT, it would bog down, not accelerate and hold back and almost make a wierd air "shhhhhh" noise kinda. MAF related??

 

I've just got my new MAF in the mail (I live in Oz), and it came with a piece of paper saying "This unit requires special ECM reprogramming of the vehicle". It does say US Only at the top, but does this mean I have to get the ECM reprogrammed, or is it only desireable?

 

I didn't reprogram my ECM when I replaced my MAF with the updated one. It's been close to a week since I put the new one in and it runs fine.

 

it's it harmful to not have it reprogrammed?? i just put on a new intake and im about to put on my new MAF this afternoon.should i get it reprogrammed??

 

this is what i'm wonder too! i put a 2k1 MAF in my 2k and my car runs poorly. what do i tell them to update? they already updated it but it seems like when putting a 2k1, you gotta do something with the thermastat sensor, or is that just the 2k2-2k3?

 

yeah i mean im not sure, my MAF is screwed and im having it replaced if i have to have it reprogrammed, if not then ill do it myself. Still waht do i tell the shop to do as far as programming??

 

i just called a nissan dealer and asked them if i had to update the ecm in any way and he said no. so i guess not, but i do'nt trust him 100%. i wanna know from people who drive the car.

 

im with you on that one, but no one has been able to give me the definitive answer im looking for yet. what cat did you buy??

 

where did u guys buy the 01 maf?

 

my local nissan dealer or www.courtesyparts.com

 

Just took it for a drive after installing the new MAF. It certainly fixed the weird idling, it now sits at 850 instead of around 1200 in park and doesn't stutter and almost stall anymore.

 

I agree new maf, smooth accelaration. Having my ecu reprogrammed really helped mine. Now I know there is a big talk about ecu reprogramming (to do or not to do) but I could definately tell after I got mine done.

I recently put a new maf in, and did the ecu reprogramming. but I noticed that the transmission vent tube was just hanging. Is it suppose to be like that or does it connect somewhere? I have looked everywhere and couldn't find out where it connects to (if it connects).

 

Call DaveB... his number is in the FAQs.

 

i do'nt think it connects, i thought it was supposed to at first but heard a couple members having it hanging, so i think it's straight.

 

how much is a New MAF?