Ok, for some stupid reason my check engine light will not go off. It shows a code 4/40 which has to do w/ the o2 sensor. I replaced the o2 sensor, all the wires, and I even undid the battery terminal for 5 mins and put it back on. I have no idea what is going on. But, if I get Hondata s200, does it have something that I can reset the ecu for the o2 sensor?

Thanks,
Lambert

P.S. - The motor is a ZC SOCH VTEC.

 

Are you sure it has to do with the O2 sensor? Code 4 is CKP sensor.

Even if it was the O2 sensor, there are way cheaper and better alternatives to Hondata to get the CEL off.