o2 sensor

  1. Pelagic

    2003 O2 Sensors

    Engine light on. Codes indicate something about catalytic. Replaced downstream O2 sensors with Bosch. Code came back. O2 sensor 1 voltage 0.15 V O2 sensor 1 Short Term fuel trim: -2.34% (is this normal at idle (1197RPM)?) O2 sensor 2 voltage 0.1 V O2 sensor 5 voltage 0.88 V (where is this one...
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