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    O2 Sensor Heater - Wiring Loom?

    Hi, A while ago my 2001 K11 was throwing Lean errors and Heater Sensor errors. It was running really rich which suggested a busted O2 sensor. It had done 90,000 miles so that was about right. New O2 sensor (proper Bosch one) sorted it - goes really well now. But it still throws Heater...
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