Can cool down idle be switch operated.

[INSSSANE]

Hey all,

I've just signed up in hope to find the answer I'm looking for.

I have a Pulsar Turbo with SM2 v1.91 (think that's the right chip). The car is basically a race car however it is still street registered.

What I'm trying to find out is, is it possible to set the antilag cool down idle to be switch controlled? The antilag is setup this way and I want the idle to be like it also.

The car used to run the idle 24/7 but since having it turned off for licensing purposes I want to control it via a switch. If it can't be then I'll simply turn it on 100% of the time again.

I look forward to hearing a responce as google searches are proving to be useless.


Brett

[Wroom]

This is something i have asked for too.

There is a sneak method to achieve this. Set the cool down timeout to some low value, and then you make a pulse generator that can pull the ALS switch input with a pulse of less than some 100 ms with an interval that is smaller than the timeout value.

This way you can switch between:
"normal idle" / "cool down idle" / "ALS"
by controlling the ALS switch input to:
"off" / "pulsed" / "on".

[INSSSANE]

Unfortunately I've been struggling a little fully understand the setup of the Autronic so excuse my ignorance. Would you be able to break that down a little bit more? Possibly a diagram?

Also is this theoretical information or did you set it up this way?

[INSSSANE]

Ok, I'm doing some research on the side to break your post down.

Would this mean you would need a 3 way switch? Or could the "neutral" position be taken as 2 different switches in the off position? I don't suppose you know the wiring arrangement for this setup?

As I said I have the antilag (ALS) switch operated which was installed by my tuner so i can track where that interfaces with the ecu.

Also what would you used as a pulse generator?

[Wroom]

I would make the pulse generator straight from components. But there may be a simpler method to do this?
You would require a pulse generator that pulls the input to ground a short while with a certain interval.

This pulse generator can then be parallel to the ALS switch. Say you have two switches to the ALS input. One connected to ground, and the other instead connected to the pulse generator.


You can test this. Set cool down to time out after a while. Then just flick the ALS switch quickly on/off. Now you have cool down idle. If the switch is quickly switched on/off again before the timeout, then you have permanent cool down idle.
And when you stop flicking the switch it returns to normal idle. You follow?

The idea is to make a pulse generator that flicks the switch fast enough for the ALS not to engage, but just enough to trigger the cool down timeout counter to restart.

[INSSSANE]

Yes following now. My thought just then was will the ecu retart the timing etc for ALS but as you say if it is possible to have beat any time delay for the ALS to kick in then the ecu wouldn't retart timing.

It's a same that the manufactures didn't make this option easier.

I really appreciate your replies as google hasn't got me anything.


EDIT: Where would I find the wave/voltage specs?? I can't read the manual that is on here as it's not in english.

[roberto arano]

I may be wrong on this, i would have to go to my car to verify.

But I think my car with an 2m2 1.94 is in rotational idle/cool down always even with anti lag off. This is because my "natural" (mechanical/throttle bypass air bleed) is large enough to cause the idle to be nuch higher than the target idle, so the SM2 rotationally cuts to keep the idle low enough.

Maybe i mis-remember or don't understand the exact question,?

Or maybe my "off setting" is really "auto" (by rpm), i will have to check, even if it is in auto mode, i frequently start the car just to move it and don't hit an rpm that would trigger auto ALS, yet it is still in rotational idle i believe.

[Wroom]

If you have an idle valve or kicker that supply the extra air for ALS and cool down, then you can switch between normal idle and cool down.

If you have a fixed extra throttle opening to give the extra air, then you will need the cool down permanently engaged to keep the idle rpm's at bay.

I am not 100% sure about the SM2 v1.94 chip, (There are much differences between the different SM2 chip versions), but you should be able to configure the cool down to be either permanent or time out.