DTC's P0133 and P0420 Set After Manual Trans R and R

SOURCE:
Honda Service News April 2003

TITLE:
DTCs P0133 and P0420 Set After M/T R&R

APPLIES TO:
2000-03 S2000

SERVICE TIP:
If you've just replaced the trans and the MIL comes on with a DTC P0133 [primary heated oxygen sensor (primary HO2S) (sensor 1) slow response] or DTC P0420 (catalyst system efficiency below threshold) set, make sure you installed the primary and secondary heated oxygen sensors correctly.



The primary sensor mounts into the exhaust pipe in front of the catalytic converter, and its 4P connector has male terminals. The secondary sensor mounts right into the catalytic converter. It's very easy to get these
two sensors mixed up after working on the trans, the clutch, or the exhaust system.