engine codes-po136 & ho2512?what are they?

[lilxtra]

The ck engine lt came on today on the wifie's '97 explorer sport & the were the codes found at the dealership where she works.What are they anybody know? THANKS! Scott

 

[Nate1]

P0136 = Downstream heated O2 sensor fault (Bank 1)
dunno about the second, haynes doesnt list it... but its probably related.

 

[lilxtra]

Thanks,sounds like I need an O2 sensor.Do you know if bank 1 is the driver's or pass.side? Thanks again,scott