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

 

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!!

 

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

 

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 ?

 

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

 

What AUTO mode ?

 

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

 

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

 

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

Tony

 

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

 

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..