check engine light on, replaced maf sensor as per obd2 light turned off with obd2, 10 miles later light back on

Asked by Dec 13, 2014 at 09:45 AM about the 2012 Nissan Altima 2.5

Question type: Maintenance & Repair

6 Answers

You might have a vacuum leak somewhere. When un-metered air is getting in to intake, the OBDII uses that along with MAF, Manifold Absolute pressure sensor to correlate how much air flow should be coming in @ certain rpm. You don't say what code, but I bet it is P0100, P0101, or P0102. That does indicate a Possibly bad MAF, but could be an electrical connector problem with the MAF not the unit it's self, but that or a vacuum leak. Look for and vacuum hoses that have come off, a 2012 is too soon to have them just worn out. There is an TSB (Technical Service Bulletin) for the 2012 Nissan Altima, Bulletin No. NTB12-051d which is that if replacing the MAF and light re-appears you may have to re-program the ECU. See

8 of 8 people found this helpful.

What trouble code(s) do you have? Please post them so we can help. -Jim

5 of 5 people found this helpful.

Very helpful, that was the right answer. Thank you.

4 of 4 people found this helpful.

That was the correct answer. Thank you.

1 of 1 people found this helpful.

my check engine light has been on for almost 3 years and the code reads for the Mass air flow sensor. but my car still drives. should i replace the MAF. i purchased one the other day but havent put it in yet

19 of 19 people found this helpful.

I got a bad maf sensor code. replaced sensor! saw tech service bulletin , called to see how much to reprogram computer which is the factorys fault that they sell the car with a glitch. they said at the dealer as the private garages said only the dealer can re program the computer since the equipment costs $100,000. I asked the dealer how much?they said first they replace the MAF sensor which I just bought. then they reprogram the defect in my computer they sold me when I bought the car new! seems it would be around $200.00. so I bought a reader for $20.00 and every time the light comes on I shut it off. I got tired of doing that so I have black duct tape which I cut out a small piece and block out the light. and since Nissan is at fault I will remember this and buy a Toyota next car but first I will remove the tape and use my OBD 2 and turn out the light before selling! you know the old saying "let the buyer beware"

2 of 2 people found this helpful.

Your Answer

Add photo

Related Questions


Looking for a Used Altima in your area?

CarGurus has 74,640 nationwide Altima listings starting at $1,000.


Search Nissan Altima Questions

Nissan Altima Experts

#1 Tom Demyan
Tom Demyan
Reputation 2,090
#2 Cassie Sapphire
Cassie Sapphire
Reputation 680
#3 putolile
Reputation 650
View All

Related Models For Sale

Used Nissan Maxima
329 Great Deals out of 24,189 listings starting at $1,999
Used Honda Accord
1,032 Great Deals out of 67,101 listings starting at $1,000
Used Toyota Camry
1,196 Great Deals out of 83,221 listings starting at $750
Used Honda Civic
825 Great Deals out of 83,796 listings starting at $750
Used Nissan Sentra
620 Great Deals out of 51,968 listings starting at $1,000
Used Hyundai Sonata
1,069 Great Deals out of 47,478 listings starting at $1,195
Used Toyota Corolla
947 Great Deals out of 68,800 listings starting at $1,800
Used Chevrolet Malibu
1,174 Great Deals out of 79,465 listings starting at $2,500
Used Kia Optima
536 Great Deals out of 28,553 listings starting at $1,750
Used Ford Fusion
1,240 Great Deals out of 75,912 listings starting at $1,500
Used Dodge Charger
529 Great Deals out of 28,513 listings starting at $2,500
Used Nissan Altima Coupe
60 Great Deals out of 1,510 listings starting at $1,500
Used Chevrolet Impala
557 Great Deals out of 35,581 listings starting at $899
Used Nissan Rogue
524 Great Deals out of 65,711 listings starting at $1,900
Used Hyundai Elantra
625 Great Deals out of 41,701 listings starting at $900

Used Cars For Sale

2017 Nissan Altima 2.5 For Sale
616 listings starting at $16,492
2016 Nissan Altima 2.5 For Sale
53 Great Deals out of 1,345 listings starting at $10,989
2015 Nissan Altima 2.5 For Sale
34 Great Deals out of 1,141 listings starting at $9,055
2014 Nissan Altima 2.5 For Sale
25 Great Deals out of 748 listings starting at $8,287
2013 Nissan Altima 2.5 For Sale
30 Great Deals out of 1,060 listings starting at $6,188

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.