Nissan

Nissan repair questions? Ask a mechanic for answers ASAP

Ask an Expert,
Get an Answer ASAP!

This answer was rated:

After 15 mins of stop and go traffic, 2011 Nissan maxime…

After 15 mins of...

After 15 mins of stop and go traffic, 2011 Nissan maxime hesitates when starting up. Also, once I get going the rpms will go up and down between 1500 and 2500- it feels like riding with someone that drives going up and down on the gas. Sometimes when this has gone on for awhile the car will suddenly go to 4300rpm and not go back down until I stop. Engine does not overheat.

Mechanic's Assistant: Have you checked the coolant? Have you checked for a leak in the cooling system?

Yes all ok. Engine never gets beyond midrange

Mechanic's Assistant: Are you fixing your Maxima yourself? What have you tried so far?

Code read mass air flow, replaced it, no change and light came back on in less than 35 miles. Code still a mass airflow.

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

I think that's it. Thank you

Show More
Show Less
Ask Your Own Nissan Question
Answered in 1 hour by:
3/24/2018
Jay
Jay, Nissan Technician
Category: Nissan
Satisfied Customers: 21,399
Experience: 20+yrs experience with Nissan & Infiniti Trained & Certified.Currently still working for Dealer
Verified

Hello my name is ***** ***** thank you for your question.

Where did you get the MAF sensor you installed? and what is the exact code you are getting?

Ask Your Own Nissan Question
Customer reply replied 29 days ago
It was purchased on line. Local mechanic replaced it. Local Nissan dealer will not work on it since it was over 200k Miles and they were not the dealership that had done maintenance it was another dealership 1.5 hrs away.

The reason I asked that is cause these cars are very sensitive to the type of electrical sensors installed. After Market ones never work right. If you install a After Market MAF sensor, it can continue to throw the same code. If it does not, it can cause 02 sensor code cause it flat lines 02 sensor operation, it may also act up and not throw codes.

So if you have a Mass Air Flow Sensor code, I would suggest you get the part from the dealer. Don't get a after market one. I won a bet with my boss on this. Proved that 5 MAF sensors from 3 different Auto Parts stores did not work. They also all did something different.

Ask Your Own Nissan Question

Do you know the Exact code you are getting?

Ask Your Own Nissan Question
Customer reply replied 29 days ago
I will go get it read

You got it.

Ask Your Own Nissan Question
Customer reply replied 29 days ago
P0101

That is a MAF sensor code. Now I have trick to determine if the MAF sensor is metering air or not properly but you would need the kind of scanner that can read fuel trim. Cause you can get this code if you have a bad MAF sensor or if you have a vacuum leak. So the trick I have helps determine if you have a vacuum leak.

Let me explain.....

Ask Your Own Nissan Question

So when the car is running the computer wants to see a 50/50 mixture of air and fuel. That reading is called fuel trim. It should read around 100% give or take a few degree's. So when you have a MAF sensor not metering air properly and you want to see if it has a vacuum leak causing the codes, if you unplug the MAF sensor and start the car, the fuel trim readings will drop to a default reading of 75% (at idle, not to be driven like this ). If it drops to 75%, there is no vacuum leaks and the MAF sensor would need to be replaced if readings before unplugged was lets say 118%.

Ask Your Own Nissan Question

If the car did have a vacuum leak, the fuel trim readings would not be able to drop to the default reading of 75%. It would drop to lets say around 82%. So if there was a vacuum leak it would not be able to reach 75%

Ask Your Own Nissan Question

After Market MAF sensors never meter air properly. If you find one that does, then normally it will flat line front 02 sensor operation and can cause other issues which may have you replacing more parts and end up costing you more money.

That is why I suggest to customer when it comes to electrical parts, stick with the dealer. These cars don't like after market electrical parts.

Ask Your Own Nissan Question

Do you have any more questions on this?

Ask Your Own Nissan Question
Customer reply replied 29 days ago
I'LL Get the codes read and get a new maf and try thanks!

Your welcome and thank you for using JustAnswer.com

Don't forget to Rate me if your Satisfied with my help. You Rate me by clicking the Stars on

the top of the page. I hope I have provided you with 5 Star Excellent Service

Thanks Jay!

Jay
Jay, Nissan Technician
Category: Nissan
Satisfied Customers: 21,399
Experience: 20+yrs experience with Nissan & Infiniti Trained & Certified.Currently still working for Dealer
Verified
Jay and 87 other Nissan Specialists are ready to help you
Ask your own question now
Customer reply replied 22 days ago
Sorry that page won't load. That helped a lot. Is there an EGR on the car? Where would it be found? Tried the other scanner you suggested but theirs wouldn't connect. They are buying a new one this week. Will recheck.

You do not have a Egr.

Ask Your Own Nissan Question
Customer reply replied 22 days ago
Great. Thought that was the case. It is working beautifully this afternoon. Thanks again.

Your welcome and thank you for using JustAnswer.com

Ask Your Own Nissan Question
Customer reply replied 16 days ago
The check engine light went out and that up and down oscillation of rpms has stopped about 98%. However, especially when turning, it seems difficult for it to find power and really has a hard time accelerating for 3 to 5 seconds.

You may want to have the TPS checked to make sure that is installed properly and adjusted properly as well.

Ask Your Own Nissan Question
Was this answer helpful?
Ask Jay Your Own Question
Jay
Jay
Jay, Nissan Technician
Category: Nissan
Satisfied Customers: 21,399
21,399 Satisfied Customers
Experience: 20+yrs experience with Nissan & Infiniti Trained & Certified.Currently still working for Dealer

Jay is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

I was in trouble with an electrical issue with my brand new Nissan. I frantically went online trying to find help and luckily I found your site. I reached a NISSAN tech named RIP. He was absolutely tremendous and helped me work through the issue. What a pro!

cjazLexington, KY

I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry.

Stephanie PElm City, NC

used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future.

David L.Richmond, TX

9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much.

PhilMarysville, CA

Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible.

CharlesWalnut Creek, CA

As a single woman, I really appreciate an excellent and affordable opinion.
Thank you Geordie, I will not hesitate to contact justanswer in the future!

SueCharleston, WV

Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you do indeed know your stuff.

JimCastleberry, FL

< Previous | Next >

Meet the Experts:

Chris(aka-Moose)

Chris(aka-Moose)

Nissan Technician

676 satisfied customers

16 years of experience

Tim Mohr

Tim Mohr

ASE MASTER TECH

589 satisfied customers

30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL

Marty

Marty

ASE Certified Technician

154 satisfied customers

ASE & Bosch master tech. 30 years experience.

Mike V.

Mike V.

Nissan Technician

9,365 satisfied customers

Nissan factory trained and Certified Subaru Technician.

Ron

Ron

ASE Certified Technician

562 satisfied customers

34 years of automotive Repair

Anthony

Anthony

ASE Certified Technician

332 satisfied customers

ASE Master Automobile Technician with over 18 years exp. in this field.

Richard

Richard

ASE Certified Technician

92 satisfied customers

Nissan Tech ASE certified technician

< Previous | Next >

Related Nissan Questions
Running hot. No leak and coolant is ok. 2004 titan. Flushing
running hot JA: Have you checked the coolant? Have you noticed any leaking? Customer: no leak and coolant is ok JA: What is the model/year of your Nissan? Customer: 2004 titan JA: Are you fixing your … read more
Chris(aka-Moose)
Chris(aka-Moose)
Nissan Technician
Vocational, Technical or Trade School
676 satisfied customers
85 300zx overheats when it idles. Dealership said coolant
Hi, 85 300zx overheats when it idles. Dealership said coolant was contaminated and that the hoses needed replaced. How many hoses are there? And do you think that will fix the problem? Id need to do a… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
98 Maxima. Coolant leaking from cold start valve. I do not
98 Maxima. Coolant leaking from cold start valve. I do not know what it is called but it connects to the throttle body … read more
Mike V.
Mike V.
Nissan Technician
High School or GED
9,365 satisfied customers
2011 frontier. 60k miles. Coolant getting into engine oil.
2011 frontier. 60k miles. Coolant getting into engine oil. No smoke out of exhaust and truck runs great. Ford dealership said it's probably head gasket. I tried bars stop leak just as a temporary fix … read more
Chris(aka-Moose)
Chris(aka-Moose)
Nissan Technician
Vocational, Technical or Trade School
676 satisfied customers
Wow your pretty! I have a coolant Leak coming from my
Wow your pretty! I have a coolant Leak coming from my throttle body. I'm not sure the best way to tackle it properly! … read more
3pac2222
3pac2222
nissan master auto tech
Associate Degree
2 satisfied customers
I have Nissan Pathfinder 2007 - Dealer found oil and coolant
I have Nissan Pathfinder 2007 - Dealer found oil and coolant mixed due to torque convertor seal break, causing short with valve body of the transmission. I want to understand all this by looking at a … read more
Jay
Jay
Nissan Technician
21,399 satisfied customers
Coolant hose behind the engine block leaking, what is it
Coolant hose behind the engine block leaking, what is it called? … read more
Todd M
Todd M
Owner
ASE Certification
1,710 satisfied customers
2010 Xterra. A cracked hose and loss of coolant resulted in
2010 Xterra . A cracked hose and loss of coolant resulted in overheated engine. Upon starting getting excessive white smoke that quits after the engine warms up … read more
Gunvir Singh
Gunvir Singh
1,949 satisfied customers
2011 maxima. Smoke. I dont think its heads because coolant
2011 maxima. White Smoke. I dont think its heads because coolant level stays the same ALWAYS and never have to add. Smokes on start up..... Stops... & then only on HARD acceleration. Somebody walked u… read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
562 satisfied customers
Have a 2004 nissan pathfinder ti engine loosing coolant
have a 2004 nissan pathfinder ti engine loosing coolant through exhaust ? head gasket ? $ thousands to fix. what would be a good replacement engine be ? Infinity VCT ? … read more
3pac2222
3pac2222
nissan master auto tech
Associate Degree
2 satisfied customers
HEATER BLOWER WANT RUN. COOLANT LEVEL IS FINE. 2006 ARMADA
YES I HAVE CHANGED THE FUSES AND BOUGHT A NEW BLOWER … read more
Edward Clayton
Edward Clayton
Associate Degree
1,033 satisfied customers
Coolant problem. 180000. 2003 3.5l pathfinder. Coolant
coolant overflowing regualarly and engine always seems excessively hot… read more
3pac2222
3pac2222
nissan master auto tech
Associate Degree
2 satisfied customers
Not getting any heat from 2006 titan. Checked coolant, good,
not getting any heat from 2006 titan JA: Have you checked the coolant level? Has there been any leaking from the hoses? Customer: checked coolant, good, no leaks JA: Are you fixing your Titan yourself… read more
Mechanic01
Mechanic01
2,367 satisfied customers
98 Nissan 200sx overheats, but coolant isn't mixing with
98 Nissan 200sx overheats, but coolant isn't mixing with oil … read more
internal88
internal88
Product Manger
Bachelor's Degree
623 satisfied customers
1999 Frontier needs frequent coolant added but passed a
Hi. 1999 Frontier needs frequent coolant added but passed a pressure test. Totally overheated a few months ago when I didn't know coolant was low. Otherwise runs well. Possible sources? … read more
Toyota Service
Toyota Service
Toyota Dealership Service & CR Manager
1,344 satisfied customers
My 2006 Nissan Frontier leaked coolant into transmission
My 2006 Nissan Frontier leaked coolant into transmission cooler. The radiator was replaced and transmission flushed with new filter. Now the transmission slips and doesn't shift properly. can it be fi… read more
Jay
Jay
Nissan Technician
21,399 satisfied customers
No heat inside my truck. The coolant level is perfect and I
The coolant level is perfect and I still never checked the thermostat … read more
tim37857
tim37857
Mechanic
High School or GED
71 satisfied customers
I mistakenly poured Windshield Washer fluid in the coolant
I mistakenly poured Windshield Washer fluid in the coolant tank … read more
eauto
eauto
self employed
High School or GED
74 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x