I'm still not giving up on my Zetec idling problem
Today I found out that the ECU is actually working the way it should, more or less. With the restriction plate fitted only one annoying 'problem' remains; the slow down-winding between gear changes.
The very nice Ford engineer I talked to today (I think he likes my car
) told me that the ECU must have a speed sensor signal to establish if the car is actually one the move or stationary. The original Ford solution is a separate sensor for this purpose only - if I understood him correctly. The reason for this arrangement is to minimize the risk of stalling the engine - very 'Ford-ish' if you don't mind my saying so.
I would rather be in control of this myself!
When checking the system today I found that there is no 'lag' at all in the unwinding sequence if the engine has been allowed to idle for a while. It's behaving perfectly!
Now I have figured that perhaps there could be a work-around; If it was possible to establish which lead transmits the signal from the speed sensor (which ever that is...) and if the nominal 'stationary' value of that signal could be discovered, it would be possible to trick the ECU to stay in the 'stationary' down-winding mode and I would be a much happier man
Any thoughts?
Does anyone know where the ECU is fitted in the -99 4/4? ( I haven't looked yet
)
