DTC P0133 & P1163 (D16Y5 M/T): Primary Ho2S-1 Slow Response

WARNING: This page is about a different car, the 2000 Honda Civic. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: If DTCs P0131, P0132 and/or P0135 are indicated with P0133, trouble shoot DTC P0133 last. If DTCs P1162, P1168 and/or P1169, are indicated with P1163, trouble shoot DTC P1163 last.

NOTE: DTC P0133 and P1163 are set and MIL illuminated when deterioration of HO2S-1 has been detected during 2 consecutive trips.

Perform PCM reset procedure. See PCM RESET PROCEDURE/CLEARING DTCS in SELF-DIAGNOSTICS - INTRODUCTION article. Start engine and run at 3000 RPM with no loads and transmission in Park or Neutral until radiator fan comes on. Connect SCS Service Connector (07PAZ-0010100). Test drive vehicle at 55 MPH, with transmission in D4 position (A/T) or 5th gear (M/T), until readiness code comes on.
If DTC P0133 or P1163 are not indicated, problem is intermittent. System is okay at this time. Check for poor connections or loose wires at PCM and HO2S-1 connectors. See appropriate wiring diagram in WIRING DIAGRAMS article. Repair as necessary. If DTC P0133 is indicated, replace primary HO2S-1.