Question about 2001 Nissan Maxima

1 Answer

Decreased gas mileage

I only get 250 miles per tank from my 2001 Nissan maxima.
I have a high flow intake and cataylic converter in which I thought I would see a change in my gas mileage. I have had a tune up and made sure tire pressure is good.
I noticed this change when the dealer changed the computer system 3 years ago however I have taking it back and they say it's not a problem. Can someone please provide feedback.

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 5 Answers

CURIOUS IF YOU ARE REFFERING TO THE ECM UPDATE THEY OFFERED FOR FREE ? IT WILL REALLY MAKE YOU WONDER? CHECK YOUR MASS AIRFLOW SENSOR- IF YOU GET A DTC THAT STATES YOUR TOO LEAN TO SYS BANK 1 REPLACE- BE CAREFUL THOUGH THE MAF SENSOR CAN BE EXPENSIVE-ORILEYS SEEM TO BE THE CHEAPEST AND DO NOT BUY THE SENSOR WITH THE HOUSING. 419.00 VS. 180.00 ITS ONE CLIP AND I BELIEVE 2 SCREWS. VERY TRICKY CAR SO BE CAREFULL . ITS A VERY DETAILED PROCESS THAT HAS TO BE FOLLOWED SO IF YA ARENT WILLING TO RISK IT TAKE TO
A DIFFERENT NISSAN DEALERSHIP ASK FOR AN ESTIMATE FOR REPAIRS AND A PRINTOUT OF ALL REPAIRS MADE BY NISSAN- FREE AND VERY GOOD TO HAVE- TRY THESE AS I HAVE AND SEE IF YOU GET ANY RESULTS;
CHECK BELT TENSIONER...
CLEAN FUEL INJECTION SYSTEM.
UPDATE YOUR ECM TO ACCOMODATE NEW INTAKE AND EXHAUST
REPLACE MAF SENSOR-
CHECK EHAUST FLANGE- MOTOR IS KNOWN FOR ITS ABILITY TO PRODUCE EXHAUST MANIFOLD LEAKS- WITH HOOD UP ITS THAT PUTTER SOUND NOT VERY LOUD AT ALL BUT GAS MILAGE IS REDUCED
CLEAN GAS TANK
GET GAS AT ANOTHER STATION- I FOUND THAT IF I SPEND THE EXTRA DOLLAR OR SO PER TANK ON 91-93 OCTANE MY GAS MILAGE PER TANK INCREASES 200 MILES EASY
CAR MANUAL EXPLAINS EVERYTHING SO IF YOU HAVE OWNERS MANUAL READ THRU TROUBLESHOOTING BEFORE SPENDING LOTS OF TIME N MONEY YOU DONT NEED TO . YOU HAVE THE ANSWERS IN THE BOOK . ALLDATA.COM HAS A GREAT MANUAL AVAIL ONLINE ALSO YOU MAY CHECK LOCAL LIBRARY. DO SOME HOMEWORK SAVE SOME MONEY

Posted on May 11, 2010

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

2005 dodge dakota slt, 4.7L 5sp auto, replaced engine at 214k with reman engine. immediately got rough idle at start up hot or cold. multiple misfire code/ bank 2 rich condition.


Has the valve timing been checked? This engine has three timing chains and a very specific procedure for setting the timing. I'm assuming the engine came with heads, cams, and timing chains installed, but builders can make mistakes.

May 19, 2017 | Dodge Dakota Cars & Trucks

2 Answers

Jeep engine problems


Check for intake leaks, intake hose leaks, check mass air flow sensor.
02 sensors will keep setting off a lean code until the air problem is fixed.

Jul 20, 2014 | 1997 Jeep Wrangler

1 Answer

I no longer get the same mileage on a tank of gas. It was not a gradual change. From 1 day to the next I noticed I no longer get 320 miles per full tank. I only get 240 - 260 miles. what can I look at ? It...


i know if you don't have good air flow to the air breather, you will loose gas mileage...make sure you have a good clean air filter...this would be a good start for you...

May 23, 2011 | 2001 GMC Yukon

1 Answer

It acts like it is jumping every once in a while. thought it was bad gas in the tank.


Start your car and with the hood open, give the mass air flow sensor a hard tap. If the engine stumbles when you hit it, the air flow meter is bad. It's located right after the air filter, inline with the air intake hose.

Apr 01, 2011 | 1998 Nissan Maxima

1 Answer

What causes my nissan maxima to get low gas mileage? I was told the sensor bank one and had ti replaced no change in mileage.my gage jumps from 12 -27 miles a gallon.It drinks gas!


Driving habits...incorrect tire pressure...excessive weight in car...low oil/old oil. Many things affect mileage. My 2002 max needed a new O2 sensor. Once replaced the mileage improved slightly.

Sep 06, 2010 | 2002 Nissan Maxima

1 Answer

How many miles per gallon? How many gallons of gas in a full tank of a 1997 Nissan Maima gas tank?


go to http://edmunds.com put in the info of your vehicle then go to specs it will have all info you need

Jul 13, 2010 | 1997 Nissan Maxima

1 Answer

I have change airfilter,pvc, both coils upgrade wires & plugs. i only can get around 250 miles per tank. it that good or bad? what can i do to get better miles per tank.


First off,do not install a cheap air filter,it will restrict air flow,use a napa gold,or equal ,You can change the oil,and use a synthetic oil blend,like castrol,it reduces friction.Add a good fuel cleaner,such as lucas fuel treatment.Also have a shop set the timing on the engine,over time,the timing will change,do to wear.Clean the air intake ,or throttle body,remove all the black carbon with a throttle body spray cleaner,or carburetor cleaner.

Dec 29, 2009 | 1989 Nissan Hardbody King

1 Answer

2000 S-10 v6 4.3L Poor Gas Mileage....


Try cleaning the mass air flow sensor. If you don't already have a Haynes Manual for yor truck, pick one up at a auto parts store. While at the parts store pick up a can of mass air flow sensor cleaner spray. It is diffrent than other cleaners. Mass air flow sensor is usually located somewhere in the air intake.The Haynes manual will help you in locating where it is. Do not use other types of cleaners on it as it could damage it.

Dec 17, 2008 | 2000 Chevrolet S-10

1 Answer

My car is running good and then all my horses got down and after a moment response again this problem does often


i think i had the similar problem with my car. I'm tell what my car did and if it sound the same then do what i did.
When you push the car hard usually beyond 3500-4500 RPM it would just sorta lock up. Almost like when you reach the Electronic speed limiter, which is 137mph on the maxima00-03. car looses almost all of the power and gains it back soon you let go of the gas paddle but same if you push it again.

i had to change Mass air flow sensor. There was a recall by nissan about this sensor. They would only fix it if your has less then 80k miles. If above this mileage limit you are out of luck. Sensor costs about 100 bucks. It is located right on the Intake pipe of the car. Which is that round black pipe. If you look at carefully you would see a sensor located right on that intake pipe after the air filter. May be around 1 foot apart from the air filter. you can replace the sensor by your self because there are only 2 screws you would have to open. very simple. My machinic had recommanded me to go get your car's computer reprogrammed after changing the sensor... but you don't have to because car's computer relizes the sensor change. i had to pay 60 bucks for dealers to tell me that you don't need to get your computer reprogrammed because it resets it self.
Down turn........ this faulty sensor told my car after 80mph that car is not getting enough air in the air system and engine just would not generate as much horse power or reach its peak. so.....because of that my car gave very good mileage on the highway. I tested it out ... It gave me 454 Miles per tank before i replaced that senor. Now by replacing the sensor my mileage went down to around 375 per tank... this number is around what nissan claims.
HOPEFULLY THIS HELPS YOU.... IT DID HELP ME.... IF YOU DON'T DRIVE FAST OR DO STUPID **** LIKE MYSELF.... DON'T REPLACE THE SENSOR AND KEEP GETTING THE GOOD MPG YOU ARE GETTING....

Oct 11, 2008 | 2003 Nissan Maxima

Not finding what you are looking for?
2001 Nissan Maxima Logo

217 people viewed this question

Ask a Question

Usually answered in minutes!

Top Nissan Experts

yadayada
yadayada

Level 3 Expert

75744 Answers

Phil Lovisek
Phil Lovisek

Level 3 Expert

713 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22114 Answers

Are you a Nissan Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...