RunningTooHot,

You are exactly correct about the wiring from the O2 sensor to the Frequency Valve after the Warm Up Regulator.

Please excuse my lack of knowledge on this topic, I'm trying to learn as much as possible but it takes time to put together the big picture from bits and pieces.

If say I were to remove the frequency valve do I just reconnect the hose without the valve? Or does the entire tap off of the Warm Up Regulator to the fuel distributor go away?

Thank you everyone for the input.