I've had a lazy few days and haven't done any more progress. I was using the button so often i snapped the thing off. Lucky for me they come in a 4-pack for $3.79. The other positive thing is when the switch fails on the top side the circuit is closed anyway, so I can continue to drive like nothing happened. This last full tank got me over 40mpg, but I can't say this helped any when I added wheel discs and drove on the freeway a lot more. The best thing I can see now is I can add the vacuum switch and not have a check engine light.
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