Hi,

My check engine light is ON. I ran the codes and 6 come back, all for the O2 sensors. Now, this light has been on since the previous owner did an engine swap in this vehicle because the oil pump went bad. engine only has about 50k on it.

O2 Sensors bad? something else? again, this has been only since the new engine went in. SHould I try cleaning them or is there something else i"m missing here?

The codes are:
0134
0155
0141
0161
0140

Thanks,
Steve

 

hmmmm...

 

Bump!

 

Well, assuming that the connections are all clean and correct, then yes, you need to replace all 4 02's.
Let me know if you have any other questions.

 

Thanks! I'm going to double check the connections to be sure they were installed correctly, but I think they were.

Thanks again.