r/s check engine problem, safari 2005

Ok, the big brown is for the accessory from the key switch. I found the second ignition (White) and hook my green on it. No more check engine. Thanks. Another thing is the white where I hook my tach is the white going from the PCM to the AT 3/2 solenoid. That would explain why I have reach the third and then stay on the third speed forever.

I have reset the unit to be able to perform a new learn on the second white wire at the PCM. Never been able to do a learn on it. There is a section in this forum that speak about the tach signal and it says that I can use the signal form the injector, which I try but didn't seem to learn either. I am puzzled about it.

My rs have a function called  virtual tach system (VTS) and I can see that the engine start  anyway without the tach signal. Do you know if the VTS works only without a proper tach learn form a physical signal and that it would no longer work if I a good tach learn is perform? Let say that I have learned the tach and by some reason the wire cuts and no more signal from the tach. Will the VTS work and permits the engine to start anyway?

Thanks again. I will use the RS with VTS for now but winter is coming and maybe I will have trouble to remote start the engine then and it will be necessay to have a physical tach signal? Am I of track?