Diary of a Madman; TitaniumTT's see you @ DGRRXI RE-REbuild

[RETed]

Originally Posted by vex

For the OMP you do need an input signal for position to have it work, however on the Haltech when running an ICV, it does not require the use of another input (as other sensors dictate the need and what not of the valve)--thus it stands to reason that if you can find a means of using the stepper motor without the extra need of an input you could mimic the same stepper motor controls with a predetermined startup routine.

Doesn't that get kinda dangerous?

I haven't researched this in detail, so there are a few assumptions...

I know it's a 4-position valve, so it's a 4-pole stepper motor.
Does it have limiters on min (1) and max (4)?
If it has limiters, then it's a little bit safer...
If it doesn't, then you can easily jump from min to max with one errant signal.

There has to be a reason why Mazda went with a feedback signal system.

You would think that the OMP system is important enough to have this feedback system functional.
It does throw a nasty error (which goes into limp-home mode) when triggered.


-Ted