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Club President
I supported Toymods
Location:
Sydney
Registered:
May 2002
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 ST205 Water Sprayer Wiring
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Mon, 22 March 2004 08:13
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Does anyone have a wiring diargram that shows how to connect the factory Water Sprayer in the JDM ST205's. The pump and sprayer are all wired up and I have traced it back to the main loom..... Where does it go from there ???
Any help Greatly appreciated.
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I supported Toymods
Banned User
Location:
Brisbane
Registered:
May 2002
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Re: ST205 Water Sprayer Wiring
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Mon, 22 March 2004 08:32
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I checked out the ST205 service manual but cant find anything in there at all about the water sprayers 
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Location:
Colac, Victoria
Registered:
May 2002
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Re: ST205 Water Sprayer Wiring
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Mon, 22 March 2004 10:20
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best bet would be route around it rod - this is what im doing for my st185 Grp A waterspray kit ..
just hook it up to a toggle swtich - or maybe a temp sensing solinoidy switch thing..
MRT do alot of these kits on WRX's - they might have a good suggestion if you want it " loomed in "
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Club Member
Location:
sydney
Registered:
May 2002
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Re: ST205 Water Sprayer Wiring
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Mon, 22 March 2004 22:02
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Rod I believe they are switched at the ecu.. if you have the whole loom do a continuity test on the plug ends.
Pinout
also try here, theres some wiring diagrams under ST205, ecu power source diagrams
http://gtfour.supras.org.nz/diagrams.htm
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Location:
Melbourne
Registered:
November 2003
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Re: ST205 Water Sprayer Wiring
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Mon, 22 March 2004 23:10
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My understanding is that they only operate at very high temperatures and "Normal" driving would not cause them to operate.
The Pump in the wiring Diagrams may be the Intercooler Water Pump ( Electric)for flow of water through the intercooler.
I will see if I can find a wiring Diagram later but would suggest that Classique 71 has the right idea.
Toyoda
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Club President
I supported Toymods
Location:
Sydney
Registered:
May 2002
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Location:
Melbourne
Registered:
November 2003
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Re: ST205 Water Sprayer Wiring
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Tue, 23 March 2004 01:13
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OK Found a copy of the Group A ST205 Supplement
Give me a Fax No and I will send it through.
Toyoda
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Location:
Melbourne
Registered:
November 2003
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Re: ST205 Water Sprayer Wiring
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Tue, 23 March 2004 01:15
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By the way - There is two types of Water spray:
1/. Into Manifold ( thats what it looks like anyway)
2/. Onto Sub Radiator
Toyoda
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Club Member
Location:
sydney
Registered:
May 2002
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Location:
sydney
Registered:
March 2003
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Re: ST205 Water Sprayer Wiring
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Tue, 23 March 2004 03:59
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i thought the water pump was the water to air intercooler pump
i have never heard of water spray on a celica gt4
i might be wrong
i know lancers have the switch near the handbrake
but im sure the above wiring diagram is the water pump for the water to air intercooler
the ecu controls what speed the pump to go at
easiest way to set up water spray is to get a hobbs adjustable boost switch about 50 bucks
but make sure u have a big tank of water
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Location:
Colac, Victoria
Registered:
May 2002
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Re: ST205 Water Sprayer Wiring
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Tue, 23 March 2004 07:07
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for those who dont know - all group A , RC and carlos sainz st185's and 205's had the facilitys for a water spray kit - it was just never wired in
the st205 WRC editions also had water INJECTION setups there as well as ive found out recently ..
Neither are wired in to function on the road car - sadly ..
you have to do it yourself
Another example on the ST205 is the anti lag device - or that thing that makes the rallycars go BANGBANG thru the hills .. its there - just not functional.
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I supported Toymods
Banned User
Location:
Brisbane
Registered:
May 2002
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Re: ST205 Water Sprayer Wiring
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Tue, 23 March 2004 07:24
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All those diagrams above talking about the intercooler pump are exactly that. The pump that runs water through the intercooler.
I have the full 6 manuals for the ST205 and they do not mention the water sprayers.
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Location:
Melbourne
Registered:
November 2003
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Re: ST205 Water Sprayer Wiring
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Tue, 23 March 2004 21:30
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As I said, I have a copy of the Celica ST205 ( Group A homologation-Based model) Supplement for 3S-GTE Engine repair Manual in front of me.
Its contents are :
Water Inhection
Water Pump
Pressure Pipe
Water Bypass Pipe
Water Pump
3 Way Valve
Air Injection Manifold
Also included are a couple of Wiring Diagrams on the back
Same offer - Give me a Fax No and I will Fax it through.
Toyoda
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Location:
Sutherland, Sydney
Registered:
June 2002
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Re: ST205 Water Sprayer Wiring
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Fri, 26 March 2004 10:48
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I was just looking at the water spray setup, which is factory installed but not operational, and decided it might need a better look at another time. From memory I recall some guys found a valve needed removing?? or a pole change?? and also I think they found the actual nozzles were too big and leak???.
Can someone verify this?? If anyone hears or finds what nozzles etc I'll need or can suggest some then please let me know!!!
also, just skimming the other posts and no offence but I was still confused about your list and still can't locate the water sprayer bit
Its contents are :
Water Inhection
Water Pump
Pressure Pipe
Water Bypass Pipe
Water Pump
3 Way Valve
Air Injection Manifold
I sure hope you are not confusing the water injection (into fuel/air mix) with an intercooler water spray setup.
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Location:
Brisbane
Registered:
August 2003
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Re: ST205 Water Sprayer Wiring
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Sat, 27 March 2004 08:18
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I went to Toyota and asked about getting a new part for the waterspray kit but they didn't know anything about it. They found the part number but it had no description or name. The part is going to cost $40 from Japan, so i've just crimped the water pipe for now. It uses the windscreen fluid as I found out when I filled it up and got a wet foot. 
I have pics of the water spray kit if anyone is interested in what they look like.
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Registered:
May 2002
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Re: ST205 Water Sprayer Wiring
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Sat, 27 March 2004 09:01
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Guys, this is what I know about the squirters from the 185 Group A's
They run off a secondary pump located on the bottom of the windscreen washer bottle.
The water pipe that is attached to this connects to a " T Piece" on the right hand side of the front bar. One end would normally be blocked off ( this is normally used on group A's that also came with headlight squirters  ) and the other is for the intercooler heat exchanger.
Following these wires did not lead back to the ECU but to the instrumental cluster so there must have be an option/button to operate it manually.
I ended up doing a very basic mod which involved a bit of wire tapping which allowed me to operate the squirters from the instrumental stalk.
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Location:
Sutherland, Sydney
Registered:
June 2002
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Registered:
May 2002
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Re: ST205 Water Sprayer Wiring
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Sun, 28 March 2004 06:44
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No Probs Steve,
The ST195  is gettin there. The squirters are ok because they sit above the motor so thet do not leak however if the washer bottle is full and you use the squirters they do tend to syphon out a bit due to the pressure in the bottle. It will continue to leak until the water level is not so high hence not as much pressure forcing the water out of the squirters.
The squirters can be replaced with valved brass ones that will eliminate this problem also. Just dont over fill your washer bottle as the stock ones really give a good drenching to the heater exchange radiator \ frontmount.
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Location:
Perth
Registered:
February 2003
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Re: ST205 Water Sprayer Wiring
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Tue, 13 July 2004 17:49
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I dunno if this will help, but the spray bar in my Aust ST205 is hooked up to spray when the headlight washer button on the dash is pressed. It was like that when I bought it but i believe its a simple matter of switching a 3 way value or swapping some hoses around to get it to work as long as you dont mind not having headlight washers....
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Location:
Canberra, ACT
Registered:
March 2003
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Re: ST205 Water Sprayer Wiring
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Tue, 03 August 2004 00:53
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I've just had a look at a ST185 RC (group A) front cut. The extra pump on the washer bottle sends fluid to a valve on the drivers side of the front bar. Normally the valve is closed so that water doesn't come out the water sprayers. If you remove the rubber cap on the valve, twist, pull and twist back, you redirect the flow to the water sprayers. You'll have to sort the wiring though.
The sprayers flow like a mofo. 4 litres per minute.
Also found an intercooler ECU - anyone know what that does? Does it control the intercooler water pump?
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