That is a valid point as well Luddite to use for a while such a switch! Even if the car drives subjectively well with the circuit always open it could be the case that the parameter are not as intended for normal drive. E.g. the engine brake force keeps stronger. Just to mention one point I can directly notice. So I will see what happens if I can switch to a permanently closed circuit before I order a new BPS switch.
BTW regarding the switches my friend writes:
I'm also thinking the actuation point for a NO and NC switch in the same switch body is often different. Like you have two switches with the same outside mechanics, but different function inside. The actuation, pre travel and overtravel specs are going to be different. If you are setting the position using the brake light, then it's possible the fuel switch is just sightly not fully engaged and becomes intermittent enough for the ECU to think you're often but not always on the brake?
So many theories that can get ruled out with an oscilloscope 🙂 I'm so blind without that lens....
No problem on the quoting, haha.
On this point I see more the danger of overtravel because both switches are almost fully pressed down due to the brake pedal.
