Which ECU ground for wideband hookup?
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From: SoCal, CA
Which ECU ground for wideband hookup?
My PLX has always been wired straight to the battery, but I've decided to ground it at the ECU which is recommended for accuracy. But which ground do I use? The ECU has quite a few: PG1, PG2, SG1, SG2...
And doesn't the thermostat ground go straight to the ECU somewhere? Where can I tap into that?
And doesn't the thermostat ground go straight to the ECU somewhere? Where can I tap into that?
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