P0125 Diagnostic Trouble Code Discussion for January 2007
Insufficient Coolant Temperature For Closed Loop
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| Help Request | Posted | |
| 2000 Toyota 4Runner SR5 3.4L MIL Lamp on VIN: JT3HN86R0Y P0125: Insufficient Coolant Temperature For Closed Loop. Thanks in advance to Toyota masters. Replaced B1S1 air fuel ratio sensor based upon open heater circuit. Originally had both codes stored. Upon clearing ECM and two trip road test, PO125 returned. Unlike O2 sensor, fixed voltage air fuel is more difficult to t... |
January 11, 2007 | |
| 2000 Toyota 4Runner SR5 3.4L MIL Lamp on VIN: JT3HN86R0Y P0125: Insufficient Coolant Temperature For Closed Loop. Thanks in advance to Toyota masters. Replaced B1S1 air fuel ratio sensor based upon open heater circuit. Originally had both codes stored. Upon clearing ECM and two trip road test, PO125 returned. Unlike O2 sensor, fixed voltage air fuel is more difficult to t... |
January 12, 2007 |
