Question about 1996 Saturn SL

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I recently had my wife's 196 Saturn SL1 inspected after having a catalytic converter and a muffler installed. Fault code PO113 came up, preventing me from passing the inspection, I purchased an IAT sensor from the dealer, but now I need a diagram or a picture to show where and how to install it .

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  • Saturn Master
  • 6,674 Answers

Follow intake air housing from front of car to where it connects to throttle body. Normally found in that housing. Look for wire harness to it. Replacement usually fairly obvious when you see it.

Posted on Apr 05, 2011

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Posted on Jan 02, 2017

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I HAVE 99 SATURN SL1, CHECH ENGINE LIGHT ON WHEN I CHECH IT .THE TROUBLE CODE P0420(UPSTREAM CATALYTIC CONVERTER EFFICIENCY BELOW THRESHOLD)


I guess one would come to the conclusion you need to replace the upstream O2 sensor. Buy one at a parts store and take it to a muffler shop, having a lift they can install it for you quickly and cheaply.

Nov 03, 2010 | 1999 Saturn SL

2 Answers

I have an 1998 Chevy Blazer and need to change the catalytic converter, are the flange bolts welded and can i cut them


Catalytic Converter Removal & Installation 2.2L Engine To Remove:
Catalytic converter 2.2L engine gm-03-22-734.gif

  1. Raise and safely support the vehicle.
  2. Disconnect the heated oxygen sensor (HO2S) electrical connector.
  3. Remove the exhaust manifold pipe flange mounting nuts from the catalytic converter.
  4. Remove the catalytic converter flange mounting nuts from the muffler.
  5. Remove the catalytic converter from the muffler.
  6. Remove the catalytic converter from the rear hanger bracket insulator.
  7. Remove the catalytic converter.
  8. Remove the (HO2S) from the catalytic converter.
To Install:
  1. Install the (HO2S) to the catalytic converter.
  2. Install a new gasket and the catalytic converter to the muffler.
  3. Install catalytic converter to the catalytic converter hanger.
  4. Install the catalytic converter flange mounting nuts to the muffler flange.
    • Tighten to 26 ft lbs (35 Nm).
  5. Install the catalytic converter flange mounting nuts to the exhaust manifold pipe flange.
    • Tighten to 26 ft lbs (35 Nm).
  6. Connect the heated oxygen sensor (HO2S) electrical connector.
  7. Lower the vehicle.
------ Catalytic Converter Removal & Installation 4.3L Engine To Remove:
  1. Raise and safely support the vehicle.
  2. Raise and support the transmission.
  3. Remove the transmission support
  4. Disconnect the left and right pre-converter heated oxygen sensor (HO2S) electrical connector.
  5. Disconnect the post-converter (HO2S) connector. Muffler flange and gasket gm-03-43-731.gif

  6. Remove the catalytic converter flange mounting nuts from the muffler.
  7. Remove the catalytic converter from the muffler.
  8. Remove the exhaust manifold flange mounting nuts from the catalytic converter. Catalytic converter 4.3L engine gm-03-43-735.gif

  9. Remove the catalytic converter from the support bracket insulator.
  10. Remove the catalytic converter and gaskets.
  11. Remove the heated oxygen sensor.
To Install:
  1. Install the heated oxygen sensors as needed.
  2. Install a new gasket and the Install the catalytic converter to the support bracket insulator.
  3. Install the catalytic converter to the exhaust manifold flange. Install the mounting nuts.
    • Tighten to 39 ft lbs (53 Nm).
  4. Using a new flange gasket, install the catalytic converter to the muffler. Install the mounting nuts.
    • Tighten to 30 ft lbs (40 Nm).
  5. Connect the left and right pre-converter heated oxygen sensor (HO2S) electrical connectors.
  6. Connect the post-converter (HO2S) electrical connector.
  7. Install the transmission support.
  8. Lower the transmission.
  9. Lower the vehicle.
prev.gif next.gif ---
It looks like you can cut them and replace them with new bolts and nuts.prev.gif next.gif

Sep 05, 2010 | 1998 Chevrolet Blazer

2 Answers

My 1997 Saturn SL1 exhaust smells like rotten eggs, even after being driven 20 miles. It had sat for a while before today, when I bought it. Oxygen sensorwas replaced yesterday, and otherwise, it runs...


replace your catalytic convertor. you can go to a smog shop and have them perform a "cat efficiency test" and see what they tell you or simply go to a muffler shop have them install one.

Nov 03, 2009 | 1997 Saturn SL

1 Answer

I just had the van in to midas muffler to repair the muffler system and the mechanic said that I didn,t need the catalytic converter muffler in front of the big muffler and did the repair eliminating the...


I would go back immediately to the mechanic and demand that the catalytic converter be replaced at their expense. The converter is needed for not only the vehicle to run properly, but also to pass state inspection. Some state laws insist that the vehicle have the catalytic converter. Midas should have known better, and I would definitely demand to speak to management or someone in corporate to have this remedied. I hope this helps and good luck.
Please remember to vote 847b576.jpg if this was helpful in any way. Thanks.

Oct 31, 2009 | 1986 Ford Econoline

2 Answers

99 saturn lacks power gets worse with trip length also have a broken converter baffel


It sounds like you catalytic converter has gone bad and needs to be replaced. A bad converter can do damage to your engine due to the excessive heat generated and can burn out your exhaust valves in the heads, which would cost you a engine rebuilt. If you take to a reputable muffler shop, like midas or speedy muffler, they can have a look at it for you free of charge and can advise you if your catalytic converter has to be replaced. Good luck and hope this helps. You should notice that you loose more power when the engine has warmed up as the catalytic converter heats up due to the air flow restriction. Good luck and hope this helps.

Oct 27, 2009 | Saturn SL Cars & Trucks

1 Answer

Replace muffler, not the catalytic converter which started to rattle. Stop running, will crank but will not start. can it be the catalytic converter.


if the converter is rattlin then it needs to be replaced because the element inside is broken. if the jeep still does not run try removing the catalytic converter to see if the restriction is too much. should start if the converter is restricted. if it doesnt maybe its whatever caused the converter to go bad in the first place

May 28, 2009 | 1996 Jeep Cherokee

1 Answer

Please Help... p0404 and p0137 Error Codes (1999 Saturn SL1)


hey if you truely think it is your egr valve unhook it and if that is the problem then when it is unhooked it should run better and the codes should not come up. hey if you cahnged the 1 o2 sensor and not the other you probably made the code for the one u repalced come up again. i would recommened that you change both of the o2 sensors at the same time. try checking if your catalatic convert is plugged. how you do this is take a dollar bill and hold it at the end of your tail pipe while it is idleing and if the dollar bill stays still you have a plugged catalatic converter.

Dec 10, 2008 | 1999 Saturn SL

1 Answer

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!

Sincerely,

JC

Dec 06, 2008 | 2003 Saturn VUE

3 Answers

2003 Saturn Vue V6 2WD catalytic converter problem


I am sorry but the delaer is correct, there are 3, and the bad news is the after market cats won't work, the check engine light will come on if you use them and for that reason you will fail smog tests, the issue is how much they flow and the way they work is not compatable with the programming of the powertrain control module, stick with the factory cats, I know they are expensive but in the end you will have to buy them.

Dec 04, 2008 | 2003 Saturn VUE

1 Answer

Please Help... p0404 and p0137 Error Codes (1999 Saturn SL1)


yes egr valve is a common thing on this saturn. very pricy and yes you need the rear o2 sensor good luck i have a used egr if interested off a sl2

Sep 29, 2008 | 1993 Saturn SL1

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