Error codes re: Trans Range & Oxygen Sensors

[Toby]

Hi. I hooked up my code reader to my '98 4x4 4.0 SOHC, and I have gotten a number of error codes. After receiving error code (#405), I replaced the trans range sensor. Now I'm getting code #s (136) & (141). Is it likely that the problem will be cured by replacing the oxygen sensor/s?

I understand there are at least 2 oxygen sensors--one is visable on the driver's side exhaust pipe. Where is the other located?

How are the sensors removed for replacement? Is it difficult?

Thanks in advance for all of your help! Tom

 

[Blee1099]

Code 136 & 141 refer to Bank 1 Sensor 2.. Which is after the CAT.

 

[Toby]

Hi Ben, When you say "CAT" do you mean the converter? Do you know if I can address the error by simply replacing the post CAT sensor? Excuse my ignorance and thank you for your response and patience! Tom Morgan