New guy needs some help

[srsfunk]

OK, the 2nd time I drove my car the check engine light came on, did some checking and found out how to get the codes. Only C code was a P0161 so after checking I replaced that O2 sensor. Drove the car today for over a hundred miles. Shut it off at least 3 times during the day. The check engine light is still on, but all the codes now show H.

Do I have to reset it somehow or is something else up?

 

[Mr. Lucky]

It takes two successful ignition cycles before the CEL will go out from a P0161 event. It's also possible to have a transitory issue that you can never catch in the "C" state.

A bad O2 sensor is not the only cause for a failure. You could also have an air leak at or upstream of the sensor. Here is the service manual t/s procedure for that code on your 2002.

GL!

 

[LLC5]

Did you clear the code before driving? If not clear the code through the dic reset button, drive the vehicle and see if the code comes back.