DTC P0133: 1/1 O2 Sensor Slow Response: Notes

NOTE: For circuit identification and wiring diagram, see WIRING DIAGRAMS article. If Powertrain Control Module (PCM) is replaced, PCM must be reprogrammed. See PROGRAMMING . After each repair procedure has been completed, reconnect all components. Perform TEST VER-5 under VERIFICATION TESTS to ensure system is functioning properly.

NOTE: 1/1 HO2S may also be referred to as an upstream oxygen sensor. On Federal models, 1/1 HO2S is located in exhaust downpipe in front of catalytic converter. On Calif. models, 4.0L 1/1 HO2S is located in front exhaust manifold. On 4.7L, 1/1 HO2S is located in left (driver's side) exhaust downpipe in front of catalytic converter.