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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.
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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?
WD40
What is an EC-TS for a 1998 Saturn SC2?
Engine Coolant Temperature Sensor.
What is spark plug gap for 1994 sc2 Saturn dohc?
40 thousands
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.
How do I change brake pad on a 2001 Saturn sc2?
newdiv
How do you change the water pump on a 2001 Saturn SC2?
see link below
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
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. http://www.installdr.com/Harnesses/GM-Wiring.pdf
How do you Change oil in 2002 Saturn SC2?
The same way you do with any other car.
1994 Saturn SC2?
Is this actually a question? The "2" refers to the fact that the engine has 2 camshafts... and a few extras.
