MAF (Mass Air Flow) for 2002 Altima 3.5 SE - Nissan Forums : Nissan Forum
 
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#1 Old 03-19-2010, 09:27 PM
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Question MAF (Mass Air Flow) for 2002 Altima 3.5 SE

I took my car to the dealership because I was having poor acceleration (choking) issues. The car moves in and out of gears fine. It is when I try to STEP on it, that the car gets bogged down and doesn't want to kick into action. Dealer charged me $97 to hook it up to their computer and said they still don't know the problem. They said the front and rear O2 sensors were giving bad readings, but would need to charge me another $130 just to see/check if it was one of the Pre-Cats. I told them goodbye.

I took my car to Meineke to get the exhaust checked out. They ran some exhaust tests and said they believe the exhaust is fine, but think it could possibly be the MAF. The only issue is that they want to charge me $550 parts/labor. It is pretty expensive since I could get it for way cheaper and install myself, but they said if it isn't the MAF causing the problem, they will not charge me for it.

I just spent $500 on replacing the front driverside wheel hub and bearing, plus I need new tires. Should I just suck it up and give them the $550 or just buy an $80 MAF off of ebay and cross my fingers that it is actually the MAF?

Air Mass Flow Sensor Nissan 02 03 Altima Sentra MAF NEW : eBay Motors (item 390168988008 end time Apr-11-10 14:30:00 PDT)

or

02 2003 Nissan Altima 2.5L 3.5L Mass Air Flow Meter MAF : eBay Motors (item 350272781551 end time Mar-30-10 11:57:38 PDT)

Thanks.

2002 Nissan Altima 3.5 SE Super Black
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Last edited by 3.5AltimaNJ02; 03-19-2010 at 10:05 PM.
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#2 Old 03-20-2010, 12:41 AM
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sounds pretty much same problems i had and it was the maf, go to autozone and have them hook it up to a reader, also try MAF cleaner sometimes it helps but very rare

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#3 Old 03-20-2010, 01:07 AM
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Isn't a reader only good if the car is showing an SES light? My car isn't showing the SES light.

You think it's worth it to just buy one of the ebay MAF's?

2002 Nissan Altima 3.5 SE Super Black
*Black Leather Interior
*Moon Roof
*Autodim
*6 CD Bose Stereo System
*Stainless Steel Brake Lines
*50% Black Onyx Tint All Around
*Brushed Aluminum Dash Kit
*Custom Enterprise Rear Sway Bar
*Continental ExtremeContact DWS Tires (Ultra High Performance All-Season)
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#4 Old 03-20-2010, 02:08 AM
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Quote:
Originally Posted by 3.5AltimaNJ02 View Post
Isn't a reader only good if the car is showing an SES light? My car isn't showing the SES light.

You think it's worth it to just buy one of the ebay MAF's?
I have a computer serial-usb scanner/reader. (ScanXL) It will only tell you codes if a light is or has recently been on. It will, however, allow you to see some other information such as the airflow rate, spark advance, fuel flow rate, engine rpm, etc... (they're called PID's)

You can use this to help you troubleshoot your problems


Another option - go to autozone, buy the sensor, try it out. If it works, nice. If not - take it right back. It's not like you've damaged the product any.
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#5 Old 03-20-2010, 02:26 AM
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If you have a bad MAF sensor... try unplugging it to see if it will throw a SES code. Its very strange if the MAF is bad but your not getting a SES code. And like the others mentioned... go to Autozone and see if they can find anything.



06 SE VQ 5spd sleeper ll...

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#6 Old 03-28-2010, 10:11 PM
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If your problem is a blown MAF, the fix is using an 03 G35 automatic MAF. The manual's (IIRC) were avoided for some reason.

Have you tried a junkyard? They are a great source for OEM parts. I use car-part.com all the time for my car and my parents. You can haggle and find parts if you are willing to pay a little for shipping.

Unfortunately, cars are expensive to fix. If you haven't bought tire yet I went to Discount Tires, Wheels & ATV | Treadepot.com and got a great deal on some goodyear's. They run speicals and have the best prices on name brand tires I have seen yet.
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#7 Old 03-29-2010, 12:52 PM
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Quote:
Originally Posted by Swim100flyy View Post
Another option - go to autozone, buy the sensor, try it out. If it works, nice. If not - take it right back. It's not like you've damaged the product any.
Don't do this. They will have every right not to take it back. Installing electronics and trying to return it as new is a BIG no-no. And yes, they will be able to tell.


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#8 Old 03-30-2010, 01:22 AM
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This is a big issue w/the 5th and 5.5gen Maxies.....many have had similar experiences with the MAF being out of spec but not enough to throw a light. I'd hit up a local yard, car-part or perhaps Courtesy Nissan.

I don't know how similar/dissimilar the 5th gen Max and Altima MAF is but the Maxima guys get the 5th gen sensors for their '02-'03 Maximas for at or under $100 at the dealer and then swap the thermistor over.


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#9 Old 04-21-2010, 04:11 PM
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The verdict is in....the Pre-Cat behind the engine is breaking up and clogging up my exhaust tube. I will need a new Pre-cat and need to have the exhaust tube hallowed out to fix the issue. Expensive, but at least I know what the problem is now and my car will run normal after it is fixed.

2002 Nissan Altima 3.5 SE Super Black
*Black Leather Interior
*Moon Roof
*Autodim
*6 CD Bose Stereo System
*Stainless Steel Brake Lines
*50% Black Onyx Tint All Around
*Brushed Aluminum Dash Kit
*Custom Enterprise Rear Sway Bar
*Continental ExtremeContact DWS Tires (Ultra High Performance All-Season)
*MP3 Hookup
*Viper Remote Starter
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#10 Old 04-21-2010, 07:23 PM
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hmmm maybe ur not into tuning ur Alti , but headers?

You ever try catching a shadow...? Exactly.
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#11 Old 04-21-2010, 08:11 PM
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I probably won't consider headers, but I like how the car drives stock anyways and don't want to worry about O2 sensors and passing emissions, etc etc.

2002 Nissan Altima 3.5 SE Super Black
*Black Leather Interior
*Moon Roof
*Autodim
*6 CD Bose Stereo System
*Stainless Steel Brake Lines
*50% Black Onyx Tint All Around
*Brushed Aluminum Dash Kit
*Custom Enterprise Rear Sway Bar
*Continental ExtremeContact DWS Tires (Ultra High Performance All-Season)
*MP3 Hookup
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#12 Old 04-21-2010, 08:53 PM
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Taz's hi-flo cat can't come soon enough. I know my car (02' 3.5) is starting to have pre-cat issues and I'm hoping taz's product comes out sooner so that it doesn't damage my engine (if it hasn't already). Engine is consuming more oil between oil changes and I'm starting to get the dreaded sulfer smell every now and then.

http://www.nissanclub.com/forums/200...ect-today.html



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#13 Old 04-21-2010, 09:17 PM
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Quote:
Originally Posted by jumper73 View Post
Taz's hi-flo cat can't come soon enough. I know my car (02' 3.5) is starting to have pre-cat issues and I'm hoping taz's product comes out sooner so that it doesn't damage my engine (if it hasn't already). Engine is consuming more oil between oil changes and I'm starting to get the dreaded sulfer smell every now and then.

http://www.nissanclub.com/forums/200...ect-today.html
Yeah, I'm subscribed to Taz's Hi-Flo Cat Project Thread, but unfortunately, his product isn't ready and I need the work done now.

I never had any oil consumption issues...knock on wood...only acceleration problems.

2002 Nissan Altima 3.5 SE Super Black
*Black Leather Interior
*Moon Roof
*Autodim
*6 CD Bose Stereo System
*Stainless Steel Brake Lines
*50% Black Onyx Tint All Around
*Brushed Aluminum Dash Kit
*Custom Enterprise Rear Sway Bar
*Continental ExtremeContact DWS Tires (Ultra High Performance All-Season)
*MP3 Hookup
*Viper Remote Starter

Last edited by 3.5AltimaNJ02; 04-21-2010 at 09:20 PM.
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#14 Old 04-27-2010, 04:54 AM
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only 3.5L engine will work with AM600. the QR25DE only fit with 8j000
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