Best Answer

the o2 sensor is located right in the front of the engine on the exhaust manifold. it's that big rusty lookin thing. the o2 sensor is the bolt lookin thing coming out of it with the wire attached. unclip the wire and loosen it with an appropriate sized wrench. you may need some liquid wrench for this to penetrate the rust. once it's out ( it will take some muscle) toss it and simply screw the new one in and tighten it with a wrench. clip the wire back up and you're ready to go.

Be sure and put some anti-sieze on the threads before you install it.

As long as you are not reusing the old sensor you can cut off the wires at the sensor and use a 7/8' deep socket to remove the old one.

User Avatar

Wiki User

โˆ™ 2015-07-15 18:26:10
This answer is:
User Avatar

Add your answer:

Earn +5 pts
Q: How do you change the O2 sensor on a 1994 Saturn SC2?
Write your answer...

Related Questions

Why 1994 Saturn SC2 coolant rusty and foamy?

need to change more often

Which years transmissions are compatible with a 1994 Saturn sc2 - 1995 Saturn sc2?

1993-2000 ide go with 1994-1999 somewhere in there would work nicest

How do you fix a squeaky clutch pedal on a 1994 Saturn SC2?


What are some characteristics of the Saturn SC2?

The Saturn SC2 automobile was a part of the Saturn S series automobiles that was around from 1990 up until 2002. The SC2 looked similar to a Nissan 240 SX and the model was manufactured around 1994-1995.

What is spark plug gap for 1994 sc2 Saturn dohc?

40 thousands

What is an EC-TS for a 1998 Saturn SC2?

Engine Coolant Temperature Sensor.

How do I change brake pad on a 2001 Saturn sc2?


Where can I get a diagram of the intake sensor on a 1996 Saturn SC2?

The air intake sensor is a resistor that goes to the PCM. A schematic can be found in a service manual

How do you change the water pump on a 2001 Saturn SC2?

see link below

Where can you find a radio wiring diagram for a 1994 Saturn SC2?

I just installed a new CD player into my 97 Saturn SL 1 using this, it should work for your 1994 SC2 because its for 90's and above.

How do you Change oil in 2002 Saturn SC2?

The same way you do with any other car.

Why does your 97 Saturn SC2 start rough run fine then stall when you put it in gear?

vacuum leak,map sensor

1994 Saturn SC2?

Is this actually a question? The "2" refers to the fact that the engine has 2 camshafts... and a few extras.

Where is BCM located on 2001 Saturn SC2?

how to use bcm to reset change oil light

What is the inlet and outlet size of a stock 1994 Saturn SC2 Muffler?

I'm thinking it was 1 1/2" when I did mine.

Does the 1997 SC2 have a timing belt or timing chain?

chain97 Saturn sc2 has a timing chain,its a pain to change though because there is not much clearance....but it can be done!

How do you change the belt on your 1996 Saturn SC2?

Rotate the drivebelt tensioner to release the tension on the belt and remove.

Dexron 6 transmission fluid do you use in a Saturn 2001 sc2?

dexron6 are type transmission oil for Saturn 2001 serial sc2

Where is the speed sensor for a 1999 Saturn S-Series 3 Dr SC2 Coupe The parts is online for 21 bucks and you want to change it out yourself?

Sensor is at the back of the transmission on the top. Purple and yellow wires going to it. 15/16 wrench to get it out

Will seats from a 98 Saturn sc2 fit in a 94 Saturn sc2?

Yes. All Seats from Saturn S-series cars are compatible from 91-02, except for the back seats. For example: You cannot use an SC1 back seat in an SC2.

What does trouble code P0708 in a 2002 Saturn SC2 mean?

Trouble code P0708 means:Transmission range sensor circuit high input

What years will fit a 1994 Saturn sc2 transmission?

'94-'97 mp7 for auto all years (mp2/mp3) for manual

How many miles can you put on a 2001 Saturn SC2?

i have a 1997 Saturn sc2 410xxx miles my friend is at 560xxx on his sl1 if you treat a Saturn well it will last a lifetime if you don't you will cry

How do you change an Oxygen sensor on a 1999 Saturn SC2?

You can A: Use a wrench B: Rent a special tool from an automotive store that allows the sensor connector to pass through it. In either case spray some PB Blaster a few times BEFORE you attempt to remove it

Where can you get a brake line diagram for a 93 Saturn SC2?

Saturn repail manual