replacing an oxygen fuse? ...looking for an estimate

Recently got in an accident, took it in and got it repaired...radiator, fan, etc. all replaced. "Service Engine Soon" was light when I picked up the car. Bobby the mechanic said it was an oxygen fuse...$95 to replace. Just wondering if this is right or in the ball park at the very least.

Mech cant tell you its the oxygen sensor without reading the MIL code. Could be something as simple as a loose gas cap, or loose vacuum hose.

If you don't have a code scanner, you can take it to autozone and they can read it for you.

g