how do you get to it
The fuse box for a 1998 Oldsmobile Achieva is in between the dashboard and the driver's side door.
Which engine?
Mounted on top and inside the fuel tank.
the O2 Sensor Should be on top of your exhaust manifold
Achievas where only made from 1992 to 1998
Under the hood in a big black bulky fusebox.
No they will not, the achieva has a bolt pattern of 5 lug on 100mm whereas the camaro is 5 lug on 4 3/4"
In the trunk on the cover that is over the spare tire you will find a sticker with that information..
How to change a timing chain in a 1998 Oldsmobile delta 88
Need to know what engine it has.
To replace the engine coolant temperature sensor on a 1998 Oldsmobile Achieva, first, ensure the engine is cool and disconnect the negative battery cable. Locate the sensor, which is typically found near the thermostat housing or cylinder head. Unplug the electrical connector, remove the old sensor using a socket or wrench, and install the new sensor after applying a small amount of thread sealant if required. Finally, reconnect the electrical connector and the battery cable, and check for leaks or any issues.