Dual Wideband O2 sensors ???

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Fredde71
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Dual Wideband O2 sensors ???

Post by Fredde71 »

What modifications needed for using dual WB O2 sensors with MS-II V3?
Can I connect a WB O2 sensor directly to the relayboard?
Where to connect the other one?

Planning to using MS-II and EDIS on a Ford 351C V8.
midnightblue
MegaSquirt Newbie
Posts: 27
Joined: Wed Dec 29, 2004 3:19 am
Location: Milton Keynes, UK

Post by midnightblue »

You need to build an exact duplicate of the O2 sensor circuit shown in the v3.0 board schematic on http://www.megasquirt.info/ms2/pcb.htm

You can build it in the proto area, it's only 2 resistors and a capacitor and doesn't take up much space.

Jumper the input to the new circuit out to any one of the spare pins on the DB-37 (SPR1-4) and the output to JS5 under the processor.

Select "Dual Wideband" in Megatune and you're away.

Hope that helps, Matt.
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