Where is the switch that operates the Rad Fans (twin speed)?

Poze · Wannabe Joined: 30 Jun 2008 Posts: 4 Location: BOURNEMOUTH

Hello

On a 2006 engine (2.5L), to save me spending ages looking on the CD - does anyone know where the temp switch is to turn the fans on?

My engine was getting extremely hot, but they didnt go on.
I know they turn on when i connect the two green test connectors to check the cycle.

Cheers,
Poze
_________________
1953 T1 25hp
1956 T1 30hp
1964 T1 34hp

ElusiveStranger · Posted: Mon Jul 28, 2008 10:33 pm Post subject:

And what engine might that be?
_________________
The advice you receive on here is worth the paper it's written on.
Your experiences are worth shed loads to others, including the f'ups - live and learn.
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'78 Bay, 2 litre 091 box, EJ20 NA & the ashtray's on the 'right' side.
I don't lean forward for hills any more Grin

Bugger, missed out on "Live fast, die young"

jp · Posted: Tue Jul 29, 2008 8:21 am Post subject:

looking at his threads on vzi it's a 2006 2.5 Turbo WRX 285bhp STI3 Eeeek

_________________
1971 Devon Bay with 1800 Ford Turbo Diesel Engine (wip)
1983 VW Golf GTI Campaign
1979 Mini 1275 GT
2013 Scirocco TDI GT

ElusiveStranger · Posted: Tue Jul 29, 2008 12:17 pm Post subject:

Ta, just realised I'd answered him in Subaru Power too.

On the EJ20, EJ22's the sensor is on the coolant manifold. It's a brown, 2 pin connection.
This is connected to the ECU.
Dependant on temperature and vehicle speed (VSS), the ECU sends a ground signal to the relays controlling the fans. There's more than 2 relays IIRC for the 2 twin speed fans on Turbos.

Somewhere on here I posted the fan operation thresholds for speed/temperatures for both the NA and Turbo EJ motors.
_________________
The advice you receive on here is worth the paper it's written on.
Your experiences are worth shed loads to others, including the f'ups - live and learn.
Wouldn't YOU rather learn by someone else's mistakes? So would they.

'78 Bay, 2 litre 091 box, EJ20 NA & the ashtray's on the 'right' side.
I don't lean forward for hills any more Grin

Bugger, missed out on "Live fast, die young"