Question about 1996 Toyota Tacoma

1 Answer

My 1996 tacoma wont pass emmisions because the computer says that it is "not ready" for the test this normally happens after the battery has been removed but my battery has not been touched I've taken it to two different inspection places twice and recieved the same results both times please help

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 4,669 Answers

Is the engine cold? It will say that if the Oxygen sensors aren't warm yet. Try driving it for 10-15 miles before you have it inspected. If that doesn't work the heating elements might be bad in the sensor and you will have to replace the Oxygen sensors

Posted on Feb 27, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

I HAVE FAILED EMMISIONS PASSED ALL BUT READINESS RESULTS. CODE 99999..OBD


Read the article in the link below and it will explain how the readiness monitor tests work.

http://ricksfreeautorepairadvice.com/readiness-monitors-and-drive-cycles/

Mar 09, 2015 | 2000 GMC Jimmy

1 Answer

Why is my land rover discovery failing emmisions due to the computer not ready?


You are having a comms problem. Follow thie link below and see if it helps. http://www1.snapon.com/display/3871/LandRover_vcs.pdf. If this one fails you might have a problem that is normally VAG, the radio. Go to www.rosstech.com and search for "aftermarket radio"

Oct 03, 2012 | 1997 Land Rover Discovery

1 Answer

I bought a 99 Voyager this week and it failed emmissions because the battery had been removed for a peroid of time and they said I needed to drive it for a while and bring it back. How many miles do I need...


What does "not ready" mean?

A service technician will turn off the dashboard "check engine" light after most repairs. This resets the vehicle's emission system components to "not ready". The status remains "not ready" until the vehicle's computer has had adequate time to review the repaired component. This happens after the vehicle is driven for a period of time established by the manufacturer.

If the vehicle's emissions system status is "not ready" when it is presented at the E-Check station during the initial test cycle, a tailpipe emissions test may be conducted. If the vehicle is transferred to another test type, the vehicle must remain on the different test track until the vehicle passes the emissions test or receives a waiver. For example, if the vehicle undergoes an OBD II test and fails, it cannot be downgraded to a tailpipe test on a re-test; the vehicle must pass the OBD II test.

For initial and subsequent tests, if a dashboard light is on when the vehicle is presented at the E-Check station, the vehicle will fail the test.


How can the vehicle status be made ready?

When a vehicle is driven through its normal drive cycle, the computer reviews the emission control
system and if the vehicle was properly repaired, the system resets itself to ready. A normal drive
cycle includes operation at both cruising speeds and in stop-and-go traffic for up to a couple
weeks. This process should be followed before bringing the vehicle in to be tested.

May 25, 2011 | 1999 Plymouth Voyager

1 Answer

Wont pass emissions test after battery died a while ago


the emissions place will tell you why its not passing what did they say you failed emmisions do you have a light on inside of car

Feb 24, 2011 | 1999 Dodge Caravan

2 Answers

1996 jimmy failed an emission test


Did you change the air filter. The fuel filter will have no impact on emmision's but the air filter is a very common problem.If you usually drive it at low rev.'s then before you send it for emmisions test you will need to put it in a low gear and floor it for about a mile the reason is when it is being tested the engine is reved up to around 3500 rpm and any build up of unburned fuel or oil in the exhaust system will put up the emmisions reading.

Aug 19, 2009 | 1996 GMC Jimmy

1 Answer

No Electrical


Slightly Possible Though Fusable LINKS are in place to Protect from This, You must Check And TEST Any & All Fuse Links @ ALL the MAIN Power Leads. This is what has Happened , Also REPLACE ALL Damaged Wire < Burned from Short to Ground. Feel fre to Reply Back For any Questions.

May 10, 2009 | 1996 Toyota Tacoma

2 Answers

Failed emmisions test..


I am in Virginia but I believe you vehicle is showing a monitors not ready for Catalyst & Evap. If that is correct you need to basically drive the car a few days. The computer will remonitor itself and should be fine following that. Most drive cycles require highway driving & city driving. Make sure you turn on a/c as well. Its not how many miles you drive but what conditions you drive that sets you monitors. You could locate the drive cycle and attempt to replicate it but its usually very difficult drive exactly as the cycle asks. Good luck.

Mar 18, 2009 | 2003 Mercedes-Benz CLK-Class

1 Answer

Wont complete scan to pass emission test


When you rest your codes there is a series of tests your ECU has to go through before you can pass emissions. this is done some people can reset the code and go before its sets the code again. on the 96 you can have 2 tests not complete for it to pass. basicly you have to drive the car a couple days for the tests to pass.

check the readiness tests wait until only 2 have not passed. then you should be good.so drive and check.

Michael
ASE certified
PLZ rate.

Feb 09, 2009 | 1996 Chevrolet Blazer

1 Answer

Monitor Reset


The following conditions must occur to complete a Trip and test all OBD II monitors and components including the Catalyst Efficiency Monitor:
-- The misfire, comprehensive component, and adaptive fuel monitors are checked continuously from engine warm-up and can complete any time.
-- The exhaust gas recirculation (EGR) monitor test requires a series of idles and accelerations.
-- The heated oxygen sensor (HO2S) monitor requires a steady speed drive for approximately 1 minute at 30 to 40 mph.
-- The catalyst efficiency monitor requires a steady speed drive for 1 minute and 20 seconds beyond the HO2S monitor test at 40 to 65 mph.
If you cut engine off before test are completed then you must wait for a 6 hour cool down before monitors will run again.

Feb 06, 2009 | 1996 Nissan Quest

1 Answer

1997 tsi awd wont pass emissions


Very well could be, if it will not pass due to a trouble code. If it is the actual emmissions that are tested and then failed due to the CO2 emmisions then it could be a myriad of problems.

Jan 06, 2009 | 1997 Eagle Talon

Not finding what you are looking for?
1996 Toyota Tacoma Logo

Related Topics:

220 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toyota Experts

yadayada
yadayada

Level 3 Expert

61168 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6812 Answers

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

Answer questions

Manuals & User Guides

Loading...