what are these for?

[karps]

on my STI 8 under the dash at the right of the steering behind the fusebox there are 2 green plugs 1 with a red wire and 1 with a green/white wire. Now they look as if they should be plugged in to each other and their not, but i have never disconnected them so WTF are they for??? (remembering that im not that tech minded) i dont want to connect them together and find that i blow somethin up.

Anybody enlighten me???

[the squiggle]

Its part of the diagnostics for your ECU. It should be unplugged and only needs connecting when there is something wrong.

Grant

[karps]

cheers Grant, thats satisfied my curiosity

[p1ggm]

touch them....go on...

its like when someone says...dont push the red button marked "do not push"

you know you want to

[jamie_wood]

They are used to reset your ECU. Them and a pair of black ones.

[wrxmania]

I never did find out the rest of that story Jamie

Brian

[jamie_wood]

Brian, here is one way to do the reset, its said that its only for for the GC's, but it workes on mine so Im unsure where the facts come from??

NOTE: This is only applicable to MY93-00 (GCA) models. The later model MY01 (GDA) onwards require the use of a product such as the DeltaDash or similar to reset the ECU. Please see www.ecutek.com.au/delta-dash.htm for more information.

ECU clear memory procedure is as follows for auto and manual transmissions:

1) With engine at operating temperature, turn engine off.

2)Locate the two ECU check connectors, for most cars they are located under the steering column and consist of a black plastic male and female connector, and a green male female connector. The exact location of the connectors varies with the different year models, but generally they are located under the steering column on the drivers side.

NOTE: sometimes they are still taped over with some small amount of plastic tape, so look hard, they will be there!

3)With the ignition OFF connect black to black and green to green.

Turn on ignition, do not start the engine.

Depress the accelerator pedal to full throttle and hold for a few seconds, and then release.

Start engine and then drive for at least one minute, keeping road speed above 7mph

4)ECU is now re-set.

5)At this point the check engine light should start to flash the all clear signal (steady 1/2 second interval flashes). If the check engine light does not flash, or indicates some other sequence, there is a fault present in the system, and should be professionally checked for necessary repairs.

6)Stop the car and turn off the engine.

7)Disconnect the plugs.

8)Ecu reset now complete.

When I do it, I simply connect the green plugs together and also the two black ones.

Turn the ignition on, and let the fans,, etc come on and off for 1 minute

Then i start the engine and let it idle for 2 minutes

Turn the engine off

Dissconect the plugs and then start her up.

Take the car for a run on the road and make her work, ie. long straights, get up to about 40mph and drive the car in a high gear, make it labour.

I do it for a few miles and thats it done.

Massive improvments normaly.

No doubt there are many veiws on this , but it works for me