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  #1  
Old 08-04-2008, 02:30 PM
fluo fluo is offline
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electrical questions after 5spd swap

Hello all!

Im new here! At first, sorry for my bad english, but i will try my best .

I have done a 5spd swap in a SVX. I have taken a 1992 Legacy Turbo transmission. Now, all its done but i have problems with the electric:

1. I need the cables for the speed sensor. and the reverse light. Does anyone have an idea, which cables (or cable colours) on the 2 SVX transmission connectors and on the legacy transmission are used for the speed sensor and reverse light?

2. After 5spd swap, the CHECK ENGINE lamp illuminated. How can I disable the transmission failure?

The Legacy Turbo transmission has 2 connectors. A 3pin connector on the side of the transmission and a 6 pin connector on the top of the transmission, where only 4 pins are used. Whats the function of these cables at all? (disable/enable AWD? )

Hope you can help me


Thank You in advance!
Greetings
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  #2  
Old 08-04-2008, 04:42 PM
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Re: electrical questions after 5spd swap

1. I'm not sure of the differences in transmissions between countries so I'll give the answer for US transmissions, if it doesn't help hopefully some of the europeans will chime in.

1. For the speed sensor, on the SVX transmission a 3 wire speed sensor threads into a spot ofn the front differential right next to the diff dip stick. On the Legacy trans the mecahanica speedo cable threads into the body of the trans about half way back. Unscrew the collor holding the speedo cable from the legacy trans and unscrew the electronic speed sensor from the SVX trans.
The Electronic speed sensor will then thread into the Leg trans. You will need to splice in about a foot of extra wire in the 3 conductors of the SVX speed sensor wiring harness since the sensor will now be sitting back a little further.

The wiring harness's on the Leg trans sound different than ours, you'll have to use a multimeter to check resistance across various connectors while to find a pair that are closed when in R and open when in any other gear.
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  #3  
Old 08-04-2008, 05:22 PM
oab_au oab_au is offline
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Re: electrical questions after 5spd swap

Quote:
Originally Posted by Hocrest View Post
1. I'm not sure of the differences in transmissions between countries so I'll give the answer for US transmissions, if it doesn't help hopefully some of the europeans will chime in.

1. For the speed sensor, on the SVX transmission a 3 wire speed sensor threads into a spot ofn the front differential right next to the diff dip stick. On the Legacy trans the mecahanica speedo cable threads into the body of the trans about half way back. Unscrew the collor holding the speedo cable from the legacy trans and unscrew the electronic speed sensor from the SVX trans.
The Electronic speed sensor will then thread into the Leg trans. You will need to splice in about a foot of extra wire in the 3 conductors of the SVX speed sensor wiring harness since the sensor will now be sitting back a little further.

The wiring harness's on the Leg trans sound different than ours, you'll have to use a multimeter to check resistance across various connectors while to find a pair that are closed when in R and open when in any other gear.
Dave I think the German Svx used the same AWD as the US model, so it should have the Speed sensor in the front diff. If it does have the VTD its in the box on the parking cog.

Harvey.
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  #4  
Old 08-05-2008, 05:29 AM
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Re: electrical questions after 5spd swap

Okay,

thank you for your help!
So, i have to use the svx trans speed sensor in the leg trans?

Greetings
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  #5  
Old 08-05-2008, 08:04 AM
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Re: electrical questions after 5spd swap

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Originally Posted by fluo View Post
Okay,

thank you for your help!
So, i have to use the svx trans speed sensor in the leg trans?

Greetings
That is correct....
And it is outlined in my swap write up (in my sig)
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  #6  
Old 08-11-2008, 09:05 AM
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Re: electrical questions after 5spd swap

Hello,

thank you for the instructions! Now i installed the reverse light switch and removed the speed sensor from the automatic , ready to install it in the leggy trans.

But I have another question. I installed the ECU but not the TCU. When we started the car the first time, we had problems with the neutral safety switch. So we connected the ingnition cable directly to the starter. Now, the car is working good, but when we try to start the engine, when its cold, the starting time is 2 minutes and more. Also the cooling ventilators are permanently on, when i start the car.

Is it an electrical problem?



Thank You
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  #7  
Old 08-11-2008, 09:17 AM
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Re: electrical questions after 5spd swap

Ideally you want to jump the inhibitor switch circuit to the clutch switch on the pedals. This way you can only engage the starter when you depress the clutch. This and it also does not keep the ECU in the "Neutral" map. Technically the maps are supposed to be the same but I always felt the car would run better if it was not wired to start all the time.

What do you mean by cooling ventilators??

Tom
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  #8  
Old 08-11-2008, 03:13 PM
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Re: electrical questions after 5spd swap

Hi,

the cooler fans are always on, although the engine is cold.
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  #9  
Old 08-11-2008, 03:38 PM
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Re: electrical questions after 5spd swap

is the air conditioning turned on??

Tom
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  #10  
Old 08-11-2008, 04:18 PM
fluo fluo is offline
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Re: electrical questions after 5spd swap

Hi,

no all off. Is the engine fan connected with the auto trans ? (because in the water cooler is a separate oil cooler).


Greetings
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  #11  
Old 08-11-2008, 04:21 PM
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Re: electrical questions after 5spd swap

no, the auto trans has nothing to do with the engine cooling system... I would imagine that your relay(s) is/are stuck open... Gotta find out why the circuit is powered when it shouldn't be

Tom
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  #12  
Old 08-11-2008, 05:40 PM
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Re: electrical questions after 5spd swap

Did you get the speed sensor issue fixed?

The fans do get a control from the speed sensor and will run constantly if it is not connected or operating properly.
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  #13  
Old 08-12-2008, 04:37 AM
fluo fluo is offline
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Re: electrical questions after 5spd swap

Hello,

ahh ok thank you! no, the speedsensor isnt connected yet.


Greetings
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  #14  
Old 08-12-2008, 08:29 AM
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Re: electrical questions after 5spd swap

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Originally Posted by Hocrest View Post
Did you get the speed sensor issue fixed?

The fans do get a control from the speed sensor and will run constantly if it is not connected or operating properly.

Really?? I don't have the speed sensor hooked up in the Dr. SUS and the fans work normally

Tom
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  #15  
Old 08-12-2008, 11:24 AM
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Re: electrical questions after 5spd swap

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Originally Posted by TomsSVX View Post
Really?? I don't have the speed sensor hooked up in the Dr. SUS and the fans work normally

Tom

Because the fans are routed through the Legacy body wiring, not the SVX body Wiring...would be my guess..
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