2001 accent - knock sensor

[mule]

Even though my car is running great,
the check engine light came on and the code indicated a bad knock sensor
(1.5 liter engine). Does anyone know how much this would cost?? Would it
be easy to do it myself???

 

[hyundaitech]

It's not too bad if you can get under the car well. It bolts on the back
of the block with a 12mm head bolt. Cost will vary greatly by where you
have it done.

 

[mule]

Thanks for the info. Is there just one knock sensor or two??

 

[hyundaitech]

Just one. I believe the block location is the #2 cylinder.