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So I think I'm close to understanding what you did with the relay but not completely getting it.
I just ran a constant ground to *I think* pin #3. So it's ALWAYS grounded.(it's been a while)
You actually ran 12v power to it? Same pin?
I remember testing by watching fuel trims (after grounding they went more negative)...and I could also hear a click from the FFV switching solenoid when I touched the wire to ground (truck in "on" but not engine running).
I could just reconnect it to a ground and try again... Currently just pulled the whole relay hoping it would disable FFV (ethanol learning) but no luck.
So is what I did different than what you're saying? Or same end result, different methid?...
what exactly did you do with the 12v ignition source and how can I test to be sure I did this correct?
Thanks for the open loop tip too!