Hi all,
I have a 1997 Toyota Corolla, my Engine Check light is on and the ODBII gave the following diagnostic report:
Scan Data:
MIL Status ON DTC Count O2 Readiness Complete Y Freeze Data Exists Y
Operational Data:
Readiness Monitors Complete Yes 01 Fuel System 1 Open Loop 02 Fuel System 2 Not Supported 03 Load Value 27.8% & 27.4% 04
Freeze Frame Data:
P0133 O2 Sensor Circuit Slow Response (Bank 1 Sensor 1) Fuel System 1 Closed Loop 01 Fuel System 2 Not Supported 02 Load Value 28.2 % 03 Coolant Temp 185 F 04
Trouble Codes: 1.- Trouble Codes P0130 O2 Sensor Circuit Malfunction (Bank 1 Sensor 1) P0130 O2 Sensor Circuit Slow Response (Bank 1 Sensor 1) 2.- Pending Codes No Trouble Codes Found
O2 Sensor Tests: 1.- O2 Sensor 1 Low Volt Switch Time 0.400v 01 High Volt Switch Time 0.550v 02 Min Sensor Volt 1.275v 03 Max Sensor Volt 0.000v 04 2.- O2 Sensor 2 Min Sensor Volt 1.275v 01 Max Sensor Volt 0.000v 02
Can anybody tell me which Oxygen sensor (before or after the catalyst) is having a problem?
Thank you, Vance