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Originally Posted by RDM
- Brown (0-1 V) to lambda box. Does this particular connector have a name or known source? It's a one-wire connection as far as I can see, and I'd rather not cut the connector off of a perfectly good oxygen sensor.
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It's port 2 of the ECU which also leads to the original OXS sensor. You can open the Sheathing of the wire loom which comes from the big connector which will be fastened to the ECU, there the inner wire of the big green shielded wire is the one where you can connect the brown wire of the Innovate controller to.
https://www.sip-scootershop.com/en/product/wire-brakeout-plug-1-0-2-5mm-cable-600v-105-c_10156400
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I dread this as I don't own a Windows computer with a serial port,
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Im on Mac OS and "Parallels" Wirth a USB2Serial adapter is the ticket here.
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and I think that's what is required to change settings.
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The controller needs a time to initialize where in that time no signal is provided via the brown wire. IF the controller in that time provides a simple 0v signal then the ECU does behave as if the engines leans out and a huge enrichment will be the result, so a "high impendance" in the software set up, means a simple line cut off by the controller, will make behave the ECU as if the sensor has been disconnected and during that time the enrichment will be static at 50% – means open loop mode until the controller is initialized where then the correct voltage 0-1v will be provided and the ECU switches to closed loop mode.
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The oxygen sensor input is ignored until the motor warms up- how does the oxs warm-up time compare to engine warm up time? Or is this a warm start problem?
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It depends on the environment temperature and therefore how long the engine oil will need to exceed 15°C to make the ECU switch to closed loop. The initializing time of the Innovate sensor is static and takes about 30 sec IIRC.