evo4mad

iTrader: (4)

EvoScan Actuator SAS mode sends a requestID 0xC3 to the vehicle, and continues to send 0xF9 and will wait until it stops receiving 0xFF (normally the car will send 0x00 when its finished with the actuator or test)

I have in my notes that SAS stands for "speed adjusting screw" anyone know what this function does, and how long it lasts?

What does SAS Mode really stand for?

JohnBradley

iTrader: (30)

I thought SAS was Soft Antilag System. In the USDM it makes the car go pig rich when I tested it today. I couldnt log the timing but it definitely dropped as low as it does when I set ign to 5* BTDC

evo4mad

iTrader: (4)

did it have any lasting effect on your trims or settings?

evo4mad

iTrader: (4)

any documentation from Mitsubishi on this feature?

tephra

iTrader: (6)

SAS = secondary air system

basically for antilag.

99% sure on the above - but happy to be proved wrong.

bondango

Yep, Secondary Air system. BarryC or Cossie have the PDF's for it (well hardware end anyhow) i cant find them on this computer

Even though my E6 s equipped with the SAS hardware ive yet to get antlag enabled, even through the Tables in Rom (e7), bangs and pops on overrun can be mapped in using fuel and igniton retard in high vac areas but its not Anti-lag.

Ecutek can add Antilag to the evo 6 so im sure its somethng in ROM.
http://ie.youtube.com/watch?v=eFVSsuonOtY

John, have you the Hardware for the SAS system retrofitted?? it sounds like you have the ingredients for Anti-lag but not the extra air thats pumped into the manifold to cause ALS effects

JohnBradley

iTrader: (30)

I didnt look at my trims Hamish. I will hook it up later and see if it did anything to the trims. I have a feeling it might make a small STFT change but if the software is there for the SAS it probably ignores it. Kind of like the knock that the stationary rev limit generates and how it doesnt effect the octane flag (as I recall).

cossie1

That evo6 in the vid clip is not running ecutek, it's on autronic

As for the PDF for the sas, it's in the mitsi wsm, but as tephra says it stands for Secondary Air System, and it seems it's primary function was just for Hologamation purposes, so that could use it for full on Anti-lag on the WRC cars

evo828

Hmmm - I expected the SAS actuator to be the actuator for the correct adjusting of the basic idle speed. Manual says that using actuator No.30 on MUT II/III - "this holds the idle speed control servo at the basic step to adjust the basic idle speed".

If the actuator is not released (manually) - it will be released after 27 minutes automatically.

So it should hold the ISC somewhere on zero I assume (or on tha value pre-set in the idle map) - so that you can adjust the idle speed with the idle screw properly.

evo828

tested and confirmed - the SAS actuator "parks" the idle stepper motor - so you can adjust the base idle rpm with the screw correctly without the ISC to interfere.

tephra

iTrader: (6)

so this means I can dial in the BISS without the ECU interfering?

How do I hit actuator 30? will evoscan do it?

evo828

yes - evoscan 2.5 has this actuator request built-in - Actuator SAS. Start the engine and activate the actuator from evoscan. After you cancel it - the idle stpper will start correcting again. But at least you BISS screw will be setup properly.

Jorge T

iTrader: (18)

Awesome, finally will be able to set the BISS correctly.

evo4mad

iTrader: (4)

Thanks, yeah I remember getting the "Speed Adjusting Screw" from out of an Evo Manual somewhere but I couldn't remember where from.

evo4mad

iTrader: (4)

next question, what does BISS stand for? and does leaving the actuator named SAS actually make enough sense to leave it that way? what sounds lie a better name for the actuator? "Dial BISS" or "SAS" or ....