Question about 1996 Nissan Sentra

1 Answer

Computer "not ready" for emmissions testing

1997 Nissan Sentra, Car failed emmissions testing because computer was not ready. Check engine was ON due to throttle position sensor. Replaced sensor. I disconnected the battery for 20 seconds and drove the car over 100 miles, connected an OBD scanner but it couldn't read the computer either. What should I do or check for?

Posted by on

  • Anonymous Mar 31, 2009

    1996 Nissan Sentra was "not ready" after having disconnected the battery and driven 3,000 miles. The check engine light NEVER came on. Failed inspection 5 times.



    How can I fix this?

  • robert_albre Apr 14, 2009

    I have the same problem. I cleard a code my self for a bad speed sensor about 3 weeks ago. I took my car in to have the smog inspection done (CA). It failed the computer diagnostic (just three little parts). so the tech told me to just drive it around for a while and then bring it back in. The tech is pretty cool it wont run the full test he just checks the computer first and if it passes then he will do the test. So I have been bringing it almost every 2 days. Out of the three trouble spots only one has corrected it self. I am now past my plate experation I paid my registration so I would not have to pay the late fees I have no Idea what to do.

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Nissan Master
  • 6,982 Answers

Your computer will re-set and be "ready" after a certain number of restarts and miles, depending upon how much you use the car it should take from a few days to a week. Surprised the tech didn't tell you that!

Posted on Mar 22, 2009

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

Service engine soon?my car failed the emmison test.


you need to get the computer scanned and see what codes are present auto zone does it for free you cant pass an emission test with a check engine light on or right after you clear the codes it has to be driven and be in a ready status to pass hope this helps

Aug 10, 2010 | 2006 Nissan Sentra

1 Answer

96 nissan sentra has no stored codes,but computer says not ready for testing when i take it to test station


You have to drive the car at least 50 miles or more after you have had the computer cleared out. The computer has 3 or 5 monitors that keep track of the emission and fuel system. You may have to drive it even further but the best way to find out the problem is. is to find a shop that has a computer that can check out the system to see why it does not get ready. usually it is a o2 sensor but you need a scope that monitors each sensor.

Jul 05, 2010 | 2000 Nissan Sentra

2 Answers

I replaced the evap vent valve on my 2004 nissan sentra, and the check engine light is now off, I had disconnected the battery when I installed the new valve and now I am wondering if the on board computer...


The OBD-II system will reset the monitors or "flags" after about 30 miles of driving, and if the MIL (Malfunction Indicator Light) or "check engine light" has not come back on after that time it will be ready for an emission test.

Jun 13, 2010 | 2004 Nissan Sentra

1 Answer

I have Nissan 2001, and check the engine light is on for a couple of years, las week the car have failed for the emission test as the rate was 8.6. I took the car to the shop and has changed 2 censors and...


Sensors do not always fix engines,if he replaced the o2 sensors,they most likely where not the problem,o2 sensors give messages of lean,or rich mixture ,most of the time.Have you tried to clean the upper intake,tuned it up with spark plugs(from a good auto parts,not auto zone ) boots for the coils,and a good fuel injection cleaner,like LUCAS fuel treatment,and new fuel ,and air filter,,?You may need to have the fuel injectors cleaned,with a machine,replace,and check all vacuums,check the mass air flow sensor also,these can all have an effect on the engine emmissions.

May 13, 2010 | 2001 Nissan Sentra

1 Answer

Passing inspection


it is called a drive cycle self test, this gives the computer a chance to test itself and see if all problems have been corrected and all systems are functioning properly, if the test is not done the computer will read "not ready" and u fail smog. this test can take up to a week to complete.

Jan 15, 2010 | 1997 Nissan Maxima

1 Answer

Car passes emmission test but fails due to codes in computer


ok code 0300 is a random multiple cylinder misfire. probably ignition related is my guess. i would check the coil pack and ignition module and go from there.

Mar 16, 2009 | 1996 Chevrolet Cavalier

1 Answer

Auto Diagnostic Trouble Code


cORRECT. tHIS CODE DOES DEALs With emmissions. P1400 deals with the EGR valve. In case u are not aware, EGR stands for Exhaust Gas Re-circulation. What really this valve does is that it re-cycles some of the exhaust gases into the cylinder for combustion. The EGR valve might be blocked or has malfunctioned. It is advised that this valve changed or consult with a mechanic who is knowledgeable about this technology. a malfunctioned/dis-abled EGR system will cause the car to fail an emissions test, and may cause the EGR passages in the cylinder head and intake manifold to become blocked with carbon deposits, necessitating extensive engine disassembly for cleaning. So it is advised that u repair this ASAP

Jan 19, 2009 | 1997 Nissan Maxima

2 Answers

1999 Nissan Sentra won't start after switching drivers


Check the ignition coil, i had the same problem before and they also told me that it was a computer problem, if it's a failed computer then it will never start.

Jan 08, 2009 | 1997 Nissan Sentra

3 Answers

Nissan sentra 1997 starts but wont go when put in gear


is it a manual or automatic?if it's manual check clutch.if it is automatic check transmission fluid.

Dec 02, 2008 | 1997 Nissan Sentra

Not finding what you are looking for?
1996 Nissan Sentra Logo

Related Topics:

654 people viewed this question

Ask a Question

Usually answered in minutes!

Top Nissan Experts

yadayada
yadayada

Level 3 Expert

70346 Answers

Phil Lovisek
Phil Lovisek

Level 3 Expert

705 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22041 Answers

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

Answer questions

Manuals & User Guides

Loading...