Question about 2000 Saturn SW2

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I tried to get a sticker and failed because it stated that 2 (02)sensors, catalyst and evap were not ready on my 2001 saturn sw2. How do I fix this? I have been over 300 miles and have failed twice.w

Scan data stats these 4 things were not ready. Catalyst, Evap, 02 Sensor, 02 Sensor heater

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  • Saturn Master
  • 75,051 Answers

It is not something you fix, the system self tests after any time the battery is disconnected or the system reset with a scanner tool. Drive it until it clears, take about 20 miles of mixed driving, idle time, freeway, moderate speeds like in town. Gas tank must be at least 3/4 full for the test to complete. This is known as an OBD2 drive cycle. If you had a check engine light and it comes on again then you did not fix the problem.

Posted on Mar 28, 2014

  • yadayada
    yadayada Mar 30, 2014

    Here is a step by step OBD2 drive cycle test. Follow it exactly to clear the "not ready" problem. Just google this "GM OBD2 Drive Cycle Test"

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  • Contributor
  • 26 Answers

Take you car over to auto zone or one of the part stores that do the free computerI tried to get a sticker and failed because it sta - icon1.png test. They will do it for free and sell the part to you for way less money.
This is incorrect, the hand held will only show a code for a O2, but there are 2 or 4 of them, you need to replace all of them..Its best, instead of playing the guessing game.

Posted on Mar 30, 2014

  • 1 more comment 
  • yadayada
    yadayada Mar 30, 2014

    Never accept the advice of what part to replace based on the advice of a parts counter person, period.

  • yadayada
    yadayada Mar 30, 2014

    In my state it is illegal to do so.

  • Dene Lass Apr 13, 2014

    If the scan shows an O2 code, whats illegal about that, never heard of any State that does not allow a comp scan and show a code, that would be plan as day what if any replacement part, to fix the problem..I call BS on that.

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Posted on Jan 02, 2017

jmeyer847
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SOURCE: check eng light with code po431 replased ox/sensors

P0431 is Warm Up Catalyst Efficiency Below Threshold (Bank 2). What is happening is this....the O2 sensor downstream of the Catalytic Converter is detecting the Converter is not working as efficiently as it should be (according to your cars specifications). 3 main causes of this is 1.) Defective O2 Sensor (which in your case elminates this one) 2.) Catalytic Converter is no longer functioning properly. or 3.) There is an exhaust leak. You will not notice any driveablitiy problems, however, you may get a rough/hard idle when its cold out. I would take your car to an exhaust shop and have them do a free exhaust system inspection. Alot of places like Midas/Mieneke Car Center/Monroe Muffler to name a few do these checks for free. Thanks for Using FixYa!

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Posted on Dec 06, 2008

tepfy
  • 319 Answers

SOURCE: Emissions Failure-Multiple Codes

take you car over to auto zone or one of the part stores that do the free computer test. They will do it for free and sell the part to you for way less money.

Posted on Mar 16, 2009

  • 186 Answers

SOURCE: My 1999 Saturn Sl, 4 cylinder, 4DR, 5 speed failed emissions inspection- Code P1404- catalyst heater monitor. What is this, what does it do, and how much to repair-estimate?

P1404 Is an EGR Code,Needs New EGR Valve & Check the vacuum port for excessive carbon or restrictions

Posted on May 09, 2009

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SOURCE: My 1993 Saturn SL2 just failed the Smog Check

change your O2 sensor.

Posted on Jul 23, 2009

  • 468 Answers

SOURCE: My saturn wont pass emissions test and we have changed the evap

Ok, first you need to check the car to see if it's actually not heating up, or the sender's just messed up. If the car is actually heating up, replace the temperature sender, and it will likely solve your emissions problem at the same time. The sensor does double-duty, and if it's not registering the car as being warm, it will not allow the car to read the input from the oxygen sensors(it doesn't allow it to go into "closed loop" mode). If it actually isn't warming up, then replace your thermostat; it's likely stuck open, causing it to cool too well, and not going into closed loop because of it.

Posted on Jan 24, 2010

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My 2001 x5 evap & catalyst report not ready, I reset my MAF OBDII Code ~70 miles before checking it, but...


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Why do i get OBD/READINESS, Not ready?


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.
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It also says that the EGR is not ready


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Mar 28, 2014 | 2000 Saturn SW2

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CAR WONT GO IN READY STATUS


broken evap line/port on fuel pump. Or leaking fuel pump o-ring
check the EVAP canister it is right next to fuel filter could be pcm needs update to fix false codes. Here is a old hillbilly trick that may help put saliva on the seal of gas cap when you fill up every time that may work for you.

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One possible issue is a faulty thermostat. If the engine is not getting up to normal temp the emissions system will not go into closed loop.
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The O2 sensors have heaters to make the exhaust gas hot quick so that the sensors can work.
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DO NOT CLEAR CODES or run the battery dead or you will have to start over!

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Monitors not ready: Catalyst,Evap System, Oxygen Sensor, Egr Syst


Drive it some more. Has the battery been disconnected/replaced recently? The Inspection station should be able to print you out a drive cycle to get the monitors ready also.

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