2000 Avalon XLS P1135 TOYOTA - Air/Fuel Ratio Sensor Heater Circuit Response Malfunction and P1155 Sensor Heater Circuit Malfunction. I have changed all three O2 sensors and the EFI relay, there are no exhaust or intake leaks, I am getting 12v on both sides of the heater to common ground and still getting these codes what am I over looking could it be the computer? I have EQ 0.997on both B1S1 and B2S2 and 3.298v on both B1S1 and B2S2
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