I am throwing a 10 engine code.. I Replaced the sensor and cleared the code throug hondata. But it just pops right back up like 3 seconds later. Is there anything else that could make the code get thrown.. I have a victor x manifold in a 2000 em1.

 

Did you check for open wiring somewhere in that circuit?

 

Check the O2 connector and sensor also, i had the same issue and the o2 sensor connector was very dirty.

 

thanks fellas I got it figured out I guess I didnt do enough research to figure out my ek harness had a different plug for the sensor.. But I got it all wired in now.. Thanks again