P0135 O2 sensor heating circuit
P0141 O2 sensor heating circuit
P0131 O2 sensor low voltage
P1133 HO2S switch from lean to rich - not enough times
Sounds like the upstream O2 sensor is not plugged in.
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P0135 O2 sensor heating circuit
P0141 O2 sensor heating circuit
P0131 O2 sensor low voltage
P1133 HO2S switch from lean to rich - not enough times
Sounds like the upstream O2 sensor is not plugged in.
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