Question about 1999 Nissan Maxima

1 Answer

Too high co percentage (over 2%) .

On the anual inspection only 1 item was faulty (the co concentration) .
all the experts couldn't fix it.
maf was replaced , plugs were replaced , injection system was cleaned,
catalitic converter was replaced.
the computer didn't show any problem.
only the knock sensor and the oxigen sensors weren't replaced.
what could be wrong ?

Posted by on

  • Anonymous Mar 25, 2014

    I am having problems to reset codes PO0031&PO0037 oxygen sensors I already replaced both sensors an the Catalitic Converter

×

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Try changing the oil & filter if this has not been done recently

Posted on May 31, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Lean code cel flashing and lack of power what is the most likely csuse


You will more than likely not notice any drivability problems, although there may be symptoms such as: a lack of power detonation (spark knock) rough idle hesitation/surge on acceleration. Causes A code P0171 may mean that one or more of the following has happened: The MAF (Mass Air Flow) Sensor is dirty or faulty Note: The use of "oiled" air filters may cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry. There could be a vacuum leak downstream of the MAF sensor Possible cracked vacuum or PCV line/connection Faulty or stuck open PCV valve Failed or faulty oxygen sensor (bank 1, sensor 1) Sticking/plugged or failed fuel injector Low fuel pressure (possible plugged/dirty fuel filter!) Exhaust leak between engine and first oxygen sensor Possible Solutions A lot of times, cleaning the MAF sensor and finding/fixing vacuum leaks fix the problem. If you're on a tight budget, start there, but that may not be the fix for certain. So, possible solutions include: Clean the MAF sensor. Consult your service manual for it's location if you need help. I find it's best to take it off and spray it with electronics cleaner or brake cleaner. Make sure you are careful not to damage the MAF sensor, and make sure it's dry before reinstalling Inspect all vacuum and PCV hoses, replace/repair as required Inspect all hoses and connections in the air intake system Inspect and/or test the intake manifold gaskets for leakage Check for a dirty fuel filter and proper fuel pressure Ideally you'll want to monitor short and long term fuel trims using an advanced scan tool If you have access, you may want to run a smoke test

Read more at: https://www.obd-codes.com/p0171
Copyright OBD-Codes.com

Sep 09, 2016 | Cars & Trucks

1 Answer

B125. What (does) this mean?


What you are being told is perform maintainence B and perform sub items 1, 2 and 5

MAINTAINENCE A CHECKLIST:
Replace engine oil

MAINTAINENCE B CHECKLIST:
Replace engine oil and filter
Inspect front & rear brakes
Inspect parking brake & adjustment
Inspect Tie rod ends, steering box & boots
Inspect suspension components
Inspect Driveshaft boots
Inspect brake hoses and lines including ABS
Inspect All fluid levels and conditions of fluid
Inspect Exhaust system
Inspect Fuel lines & connections

SUB ITEMS CHECK LIST
1:
Rotate Tyres

2:
Replace air cleaner element (Every 15,000 miles in dusty conditions)
Replace dust & pollen filter (Urban areas with high concentrations of soot, replace every 15,00 miles)
Inspect Drive belt

3:
Replace Transmission Fluid

4:
Replace Spark plugs
Replace Timing Belt
Inspect Water Pump (V6 Engines only) - If regular extreme conditions over 110 degrees f or under -20 degrees F, replace every 60,000 miles
Inspect Valve Clearance

5:
Replace engine coolant

Apr 11, 2016 | 2010 Honda Pilot EX-L

1 Answer

Code p0171on my 2000 monte Carlo with 3.8 engine. Tapped on maf sensor no response. What next?


the following information courtesy of obd .com A code P0171 may mean that one or more of the following has happened: The MAF (Mass Air Flow) Sensor is dirty or faulty Note: The use of "oiled" air filters may cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry. There could be a vacuum leak downstream of the MAF sensor Possible cracked vacuum or PCV line/connection Faulty or stuck open PCV valve Failed or faulty oxygen sensor (bank 1, sensor 1) Sticking/plugged or failed fuel injector Low fuel pressure (possible plugged/dirty fuel filter!) Exhaust leak between engine and first oxygen sensor Possible Solutions A lot of times, cleaning the MAF sensor and finding/fixing vacuum leaks fix the problem. If you're on a tight budget, start there, but that may not be the fix for certain. So, possible solutions include: Clean the MAF sensor. Consult your service manual for it's location if you need help. I find it's best to take it off and spray it with electronics cleaner or brake cleaner. Make sure you are careful not to damage the MAF sensor, and make sure it's dry before reinstalling Inspect all vacuum and PCV hoses, replace/repair as required Inspect all hoses and connections in the air intake system Inspect and/or test the intake manifold gaskets for leakage Check for a dirty fuel filter and proper fuel pressure Ideally you'll want to monitor short and long term fuel trims using an advanced scan tool If you have access, you may want to run a smoke test

Read more at: http://www.obd-codes.com/p0171
Copyright © OBD-Codes.com

Jul 21, 2015 | Cars & Trucks

1 Answer

P0174 This check engine code came on what does it


Basically this means that an oxygen sensor in bank 2 detected a lean condition (too much oxygen in the exhaust). On V6/V8/V10 engines, Bank 2 is generally the side of the engine that doesn't have cylinder #1
A code P0174 may mean that one or more of the following has happened:
  • The MAF (Mass Air Flow) Sensor is dirty or faulty. Note: The use of "oiled" air filters can cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry.
  • There could be a vacuum leak downstream of the MAF sensor.
  • Inspect all vacuum and PCV hoses, replace if necessary
  • Check for a dirty fuel filter and proper fuel pressure
  • sometimes just cleaning the MAF sensor is enough to fix

Sep 14, 2014 | Cars & Trucks

1 Answer

What is maintenance code B123 on my 2012 MDX


B:
Replace engine oil and oil filter
Inspect front and rear brakes
Check parking
brake adjustment
Inspect these items:
Tie
rod ends, steering gear box, and boots
Suspension
components
Driveshaft boots
Brake hoses
and lines (including ABS)
All fluid levels and condition of
fluids
Exhaust system
Fuel lines and
connections

1: Rotate Tires

2:Replace air cleaner element
Replace dust and pollen filter
Inspect drive
belt
If you drive in dusty conditions, replace every
15,000
miles (24,000 km).
If you drive
primarily in urban areas that have high
concentrations of
soot in the air from industry and from
diesel-powered
vehicles, replace every 15,000 miles
(24,000 km).

3:Replace transmission and transfer fluid

Aug 16, 2013 | 2008 Acura Mdx

1 Answer

How to install a EGR valve on a 2003 Nissan Xterra


EGR is for NOX

Too Rich a fuel mix is HI CO

Are the front or upstream oxygen sensors over
100,000 miles?
Air Filter new?
Always change oil before inspection & use full synthetic
Spark plugs over 2 or 3 years,won't pass insp
Clean MAF Sensor

Nov 23, 2012 | 2003 Nissan Xterra

1 Answer

Translation for B 125 maintenance code


This fooled me for a little while, as I'm not familiar with the car. Actually what you are seeing is a maintainence message that tells you first, that you need to perform a maintainence type A or B.
Then it tells you what maintainence sub items you also need to perform.

So, what you are being told is perform maintainence B and perform sub items 1, 2 and 5

MAINTAINENCE A CHECKLIST:
Replace engine oil

MAINTAINENCE B CHECKLIST:
Replace engine oil and filter
Inspect front & rear brakes
Inspect parking brake & adjustment
Inspect Tie rod ends, steering box & boots
Inspect suspension components
Inspect Driveshaft boots
Inspect brake hoses and lines including ABS
Inspect All fluid levels and conditions of fluid
Inspect Exhaust system
Inspect Fuel lines & connections

SUB ITEMS CHECK LIST
1:
Rotate Tyres

2:
Replace air cleaner element (Every 15,000 miles in dusty conditions)
Replace dust & pollen filter (Urban areas with high concentrations of soot, replace every 15,00 miles)
Inspect Drive belt

3:
Replace Transmission Fluid

4:
Replace Spark plugs
Replace Timing Belt
Inspect Water Pump (V6 Engines only) - If regular extreme conditions over 110 degrees f or under -20 degrees F, replace every 60,000 miles
Inspect Valve Clearance

5:
Replace engine coolant

Aug 15, 2011 | 2006 Honda Accord

1 Answer

What does massor volume air flow circuit high input mean?


1. check for leaks between maf sensor and throttle valve control module 2.voltage supply faulty 3.sensor power circuit open from fuel pump relay to maf sensor 4 .sensor signal circuit open may be disconnected from ecm and maf 5 faulty ground cable resistance between connector terminal 1 and ground 6. mass sensor malfunction. most of the time when sensor circuit high input.either sensor failed or you have fault in ground cable causing resistance between connector terminal 1 and ground.voltage supply to sensor faulty.

May 25, 2011 | 2001 Volkswagen Passat

3 Answers

93 jeep cherokee , iv got spark at the coil but not at the plug just replced cap, roter, wires, but still notheing got any ides ?


Coil may be producing low voltage (KVs) to where it makes enough energy to snap out of the coil tower but then supressed as it travels down the high tension leads finally to the plug. Incidentally spark plug leads should have about 10k ohms of resistance per foot.I good coil will jump spark at least a half inch if you pull the wire off the cap and produce this much air gap

Aug 26, 2009 | 1993 Jeep Grand Cherokee

2 Answers

I got a code P0101 and have cleaned the MAF, should this fix the problem?


P0101 shows possible failing PCV valve as well as the MAF sensor. If neither of these fixes the problem, it's a possible PCM issue.

Jul 06, 2009 | 2004 Chevrolet Silverado 2500HD

Not finding what you are looking for?
1999 Nissan Maxima Logo

166 people viewed this question

Ask a Question

Usually answered in minutes!

Top Nissan Experts

yadayada
yadayada

Level 3 Expert

61249 Answers

Phil Lovisek
Phil Lovisek

Level 3 Expert

705 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

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

Answer questions

Manuals & User Guides

Loading...