stevie boy

hi

does anyone know what triggers the i/c spray in auto mode ie, throttle position, engine speed, inlet temp,boost pressure or a combination ?????

also is there a way of telling when it is working?

cheers stevie boy

ralphandcarol

stevie boy,

It's triggered by the ECU but what triggers that I am not quite sure although I think it's a combination of throttle position and boost pressure.

As for making sure and when it comes in, disconnect the water feed pipe and pin it underneath a windsreen wiper, go for a blast and you will know when it comes in!!

Pitzi

AFAIK its boost pressure and thats with a Hobbs(sp??) switch

marklemac

this has been debated before but no-one has come up with the definative answers.

I'd for certain like to know what triggers it, and can this trigger be altered ?

ThrustSSC

I'm confused here I thought the i/c spray was manual-only. Does it also kick in automatically?

hales

What AUTO mode ?

TonyBurns

iTrader: (3)

AUTO mode is on the decent JDM STi's
I think its triggered by a sensor that picks up the ammount of heat in the intercooler, its not done on boost as on a cold day you dont need it

Tony

hawkeye

i saw a post a long time ago from MIKE WOODS stating that on the uk sti's the ic spray was auto BUT only in certain circumstances when the engine needed it

TonyBurns

iTrader: (3)

The JDM cars have an auto button AND a manual button, very nice too

Tony

Phil

On 7's yes, but I beleived he concided that 8's didn't

marklemac

Mike Wood did indeed post about the spray being automatic, and I even had this confirmed over on the Ecutek forums too:

However, no-one seems to know how this is indeed triggered. The only comments I have found are "look at the wiring diagram".

Surely, someone must know the definative answer to this..