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Alan Monty Posted on Mar 06, 2016
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Why do i get OBD/READINESS, Not ready?

State inspection failed. OBD/readiness not ready Readiness failed Monitor Catalyst not ready Monitor EVAP Not ready Monitor 02 Noy ready

2 Answers

Bushie

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  • Posted on Mar 06, 2016
Bushie
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Alan, I f you have had battery disconnected or had some one erase codes recently, the computer has to go through what is known as a drive cycle to complete all monitors cycling, some vehicles complete cycle in 10 miles, where as some could take 100 miles or more.
My Toyota EVAP readiness state will not cycle in cold weather and takes thousands of miles before it gets to readiness state.
I think some shops can force systems to run if they have a good scan tool.

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  • Posted on May 17, 2016
John White
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This brief video explains succinctly what the issue is and how you can avoid this in the future: http://obdnotready.blogspot.com/

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Related Questions:

1helpful
1answer

Drive Cycle instructions for 2002 PT Cruiser?

Buy a cheap code reader and always scan your car BEFORE taking it in for inspection SO you never have to pay for a retest after failing again!
And just drive around town for about 15-20 minutes and use code reader to check readiness indicators again.
0helpful
1answer

I have a 03 f 150 4.6 2 wheel drive I lost overdrive and reverse at same time no warning and have a code p1000 how do I fix

Code P1000 is nothing , just the codes were cleared or battery was disconnected ,that's all that means . Does the O/D light flash ?
P1000 - OBD (On Board Diagnostic) System Readiness Test Not Complete The OBD monitors are performed during the OBD Drive Cycle. The P1000 will be stored in continuous memory if any of the OBD monitors do not complete their full diagnostic check.
  • Vehicle is new from the factory
  • Battery or PCM had recently been disconnected
  • An OBD monitor failure had occurred before completion of an OBD drive cycle
  • PCM DTCs have recently been cleared with a scan tool
  • PTO circuit is shorted to VPWR or B+ or PTO is on during testing
The Ford P1000, inspection/maintenance (I/M) readiness function is part of the PCM strategy. A battery disconnection or clearing codes using a scan tool results in the various I/M readiness bits being set to a "not-ready" condition. As each non-continuous OBD monitor completes a full diagnostic check, the I/M readiness bit associated with that monitor is set to a "ready" condition. This may take 1 or 2 drive cycles based on whether malfunctions are detected or not. The readiness bits for comprehensive component monitoring, misfire and fuel system monitoring are considered complete once all the non-continuous monitors have been evaluated. Because the EVAP system monitor requires certain ambient conditions to run, special logic can "bypass" the monitor for purpose of clearing the EVAP system I/M readiness bit due to continued presence of these extreme conditions.
Note: The P1000 does not need to be cleared from the PCM except to pass an I/M test.
0helpful
1answer

My 2001 dodge intrepid failed emissions says due o excessive of readiness monitors 'Not Ready'

you must not clear codes or unhook battery after doing what they call a drive cycle which resets monitors to a ready state. http://www.lhforums.net/forums/showthread.php?2755-OBD-II-and-your-Next-State-Inspection
press helpful button
0helpful
1answer

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/
0helpful
1answer

Emssion failure code "ready_Hoxy"

so what are you doing there.
using a scan tool?
my guess, only because you said READ.
this is the scan tolls , display of readiness monitors.

what that means is:"
  1. you pulled the cars battery (or it went dead) and you fail to run car for 20 miles or 30min to clear all readiness monitors (oxy) the EVAP monitor will take longest or if tank full , not run at all until 1/4 lower....
  2. there are DTC you are ignoring, yes, scan it and get them all, and win,, but if DTC errors are set , the oxygen sensor tests will fail to complete.
why not do a full scan, and report all errors. and the status of
ALL readiness monitors.
0helpful
1answer

Engine light has come on. problem was starter motor which was repaired & flee through wof. but light is still on, it is a nissan primera station wagon import from japan. does anyone know how to change the...

Your vehicle is equipped with an OBD II computer AND a link to connect OBD II computer to a Smog Check Analyzer or Data Scan Tool (available
at most auto part stores).There are two types of codes, bad codes and good codes. The good codes are the "Readiness Flags". These Readiness Flags
indicate that certain emissions systems which the OBD II computer has been monitoring have PASSED the test, indicating that those systems are
working properly. Then there are the bad codes. The bad codes are actual "Trouble Code". These codes indicate that the OBD II computer
has detected a problem with in the emissions system. The Trouble Code will specifically indicate the component and problem which was found.
Newer vehicle's have very complex codes in the thousands.
"Readiness Flags" do not cause the "Check Engine" light to illuminate, but may cause a vehicle to fail the smog test.
In order to set all the proper "Readiness Flags" the OBDII system must complete at least one drive cycle (in some cases
two or three). A drive cycle is a sequence of internal tests which the OBDII computer runs while your vehicle is being driven. This insures
all emissions systems are functioning properly. Only then will your vehicle pass the smog inspection. A drive cycle usually requires one
week of driving.
0helpful
1answer

Saturn codesP0000

Your vehicle is equipped with an OBD II computer AND a link to connect OBD II computer to a Smog Check Analyzer or Data Scan Tool (available
at most auto part stores).There are two types of codes, bad codes and good codes. The good codes are the "Readiness Flags". These Readiness Flags
indicate that certain emissions systems which the OBD II computer has been monitoring have PASSED the test, indicating that those systems are
working properly. Then there are the bad codes. The bad codes are actual "Trouble Code". These codes indicate that the OBD II computer
has detected a problem with in the emissions system. The Trouble Code will specifically indicate the component and problem which was found.
Newer vehicle's have very complex codes in the thousands.
"Readiness Flags" do not cause the "Check Engine" light to illuminate, but may cause a vehicle to fail the smog test.
In order to set all the proper "Readiness Flags" the OBDII system must complete at least one drive cycle (in some cases
two or three). A drive cycle is a sequence of internal tests which the OBDII computer runs while your vehicle is being driven. This insures
all emissions systems are functioning properly. Only then will your vehicle pass the smog inspection. A drive cycle usually requires one
week of driving.
0helpful
1answer

2007 Honda CRV failed emission - Battery died

I know a website that has every info on all vehicles and vehicle problems, with their solution In detail.. it's
www.reliable-store.com
1helpful
2answers

Will not pass inpection, 5 sensors not ready--V6 3.0

Drive the car for 2 miles non-stop and take it to smog inspection WITH OUT TURNING OFF THE CAR!! the key is that the car goes threw the test while the engine is running ...

if the car is turned off ... u will have to repeat procedure ...
1helpful
2answers

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.
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