Quote:
Originally Posted by wazzz
Pete, are you sure the red/white turns on when the ignition is switched on (but engine is not running)?
See the diagram below for MY76. It shows that the red/white is tied together with the black at FP relay pin 30. And at the other end, it is at the 14-pin connector in the engine bay.
Hence it should follow the FP on/off cycles and could indeed be used to power the O2 sensor heater. Its gauge is only 0.5mm2, but that should be enough, since the WUR is no longer there.
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Wazzz, this is my conclusion as well, using the factory diagrams and my multimeter. I haven’t tested it with the battery connected and the key in the various positions, but I will be doing so later today. I’ll post my findings. Thank you!