They are threaded, but ypu need a special socket. Also, applying heat helps to loosen it, but they are tough to remove. Just unplug connector.
crank or cam sensor...did you already figure it out?
how do you get to it
the O2 Sensor Should be on top of your exhaust manifold
How to change a timing chain in a 1998 Oldsmobile delta 88
wHereis the abs wheel speed sensor located on 1998 Oldsmobile bravadaI
Where is the transmission fluid temperature sensor on a 1998 Honda accord and how do you replace it?"
On front cover of engine by crankshaft pulley.
its located under the reserve tank...and if that is not working and you are for sure the you will have to replace the whole tank by dealer or maybe find on-line somewhere!
The 1998 Oldsmobile Intrigue throttle position sensor is held in place with two retaining screws. Remove the retaining screws and the wiring harness. Reverse the process to install the new throttle position sensor.
1998 olds aurora altenator replcemnt
I believe it is located underneath the front bumper.
you take the old one out and replace it with the new one... hope this helps