Where is it located? It is under the rear of the vehicle almost directly under the muffler next to the charcoal canister.
Is it easy to replace? That depends! It isn't particularly difficult but it is in a confined space and does require patience some mechanical ability and a few specialized tools like 1/4 drive sockets, stubby screwdriver and box end wrenches.
The sensor is secured by two fasteners that require stubby Phillips #2 scredriver and box end wrenches or 1/4 socket drive. It is in a very confined space and will require you to twist, turn and curse getting a good shot at the securing hardware. The muffler and exhaust pipes are in the way and the repair manual says to remove them to gain better access. It can be done without removing the exhaust but it is almost certianly more difficult. Removal of the exhaust can be difficult and adds more complexity.
Type your answer here... where is the coolant sensor ona 2001 chevy prizm
how do you install a 1994 Chevy prism ignition
With the correct tools
In the fuel tank
the headlight assembly needs to come out in order to replace the bulb.
the starter is located under the intake manifold you can't miss it
speed sensor
replace the blower fan resistor located under the dash behind the glove box
There isn't a reset for the oxygen sensors. When a repair is made then you need to have the computer cleared.jd
the library should have a shop manual to make copies of for your vehicle...:)
There is one before the catalytic converter and one after.
You do not repair a head gasket you replace it with a new gasket which requires removing the head.