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It would be more efficient and probably produce more power at WOT.
No, this is eating your cake and having it too.
The stock system is closed loop at idle and below 35% throttle. There is a delay built in to reduce the fluctuating idle, but it does not eliminate it. There is no active idle control on an SC and you shouldn't expect it. If you really want to learn about CIS lambda, hook up the stock sensor and plug in an analog dwell meter to the green/white stripe wire in the test plug in the engine compartment. Extend the leads so you can see the meter inside the car. Then you can see the default cold open loop duty cycle, the warm closed loop duty cycle and the open loop default after 35% throttle. When you set the mixture, you are only really effecting the open loop, post 35% throttle mixture, because the system will pull back to stoich under that. These cars run best with the duty cycle set to 30-40 dwell and the timing set to 7-10 BTDC if you have the octane. Too much time is wasted on idle mixture and settings. The purpose of an idle is to keep the engine running when you are NOT driving. The focus should be on high speed mixture and timing under load.
Paul
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Paul
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