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P1130 Diagnostic Trouble Code Discussion for October 2007

Heated Oxygen Sensor (HO2S-12/HO2S-13) Signal Circuit Demand Changing


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Trouble Ticket Help Requests for DTC P1130
Help Request Posted
2000 Toyota Sienna LE 3.0L MIL Lamp on VIN: 4T3ZF13C6Y
P1130: Air Fuel Ratio Sensor (Bank 1 Sensor 1) Circuit Malfunction. I keep getting this van back in the shop for an 02 [...] Bank 1 upstream. I have checked fuel pressure and injectors for leakage replaced 02 and MAF. Checked for vacuum leaks but I cannot figure out why my fuel trim on bank 1 goes-15% negative and eventualy th...
October 19, 2007
2000 Toyota Sienna LE 3.0L MIL Lamp on VIN: 4T3ZF13C6Y
P1130: Air Fuel Ratio Sensor (Bank 1 Sensor 1) Circuit Malfunction. I keep getting this van back in the shop for an 02 [...] Bank 1 upstream. I have checked fuel pressure and injectors for leakage replaced 02 and MAF. Checked for vacuum leaks but I cannot figure out why my fuel trim on bank 1 goes-15% negative and eventualy th...
October 19, 2007