Question about 2000 Saturn SW2
Scan data stats these 4 things were not ready. Catalyst, Evap, 02 Sensor, 02 Sensor heater
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
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.
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
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Posted on Jan 02, 2017
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!
Posted on Dec 06, 2008
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
P1404 Is an EGR Code,Needs New EGR Valve & Check the vacuum port for excessive carbon or restrictions
Posted on May 09, 2009
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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