l2iceman

hey guys, this post is about my 2000 honda prelude. Nobody on the honda prelude club seem to respond lol so i thought i'd try here...

the lude threw the CEL and the ATTS light(Active Torque Transfer System i believe), and the code for the CEL is 80, which indicates the EGR, the ATTS light is throwing codes 25, 43, 72...

no idea what the ATTS codes mean, I cant find info on it anywhere :S

now with the CEL code 80, my mechanic took out the EGR sensor, cleaned it out, cleaned out the valve, and put everything back and reset the ecu...

both lights were gone...the whole day it was fine, no lights...the next day while driving, both CEL and ATTS lights came on at the same time...

any idea what it could be? anybody here with honda experience?

could it not be the EGR? could it be the o2 sensors? from what I know the o2 sensor would throw a code 40 or something around there...but not an 80...

chris_v2

Bring it back to your mechanic, he'll most likely replace the egr which is probably your problem. For ATTS, I have never dealt with this problem so I am un-sure.. try grabbing a honda service manual.