2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
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Old 07-20-07, 08:14 PM
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Called name that part. Thanks

Old 07-20-07, 08:22 PM
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I want to say ECU...but why is it on the driver's side?
Old 07-20-07, 08:23 PM
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Well what's it connected to?
Old 07-20-07, 08:46 PM
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Originally Posted by MidnightOwl
Well what's it connected to?

Thats what I'm trying to avoid. I don't want to go disecting it to trace it back to where it goes.

Kinda reminds me of the ICU on my old 928. Separate computer used to control the timing.

I have a feeling that it is the reason I'm not getting any spark.

I switched to a RB holley setup and wantto keep using the direct fire setup, I figured that since they (engine and ignition) were on separate harnesses that I would be able to do so. Obviously not the case.

Now I don't know if I am going to have to run a standalone just for the ignition or be better off using the distributor instead.
Old 07-20-07, 10:38 PM
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Powersteering ecu
Old 07-21-07, 12:47 AM
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power steering computer
Old 07-21-07, 12:48 AM
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Originally Posted by Jarroyo
Thats what I'm trying to avoid. I don't want to go disecting it to trace it back to where it goes.

Kinda reminds me of the ICU on my old 928. Separate computer used to control the timing.

I have a feeling that it is the reason I'm not getting any spark.

I switched to a RB holley setup and wantto keep using the direct fire setup, I figured that since they (engine and ignition) were on separate harnesses that I would be able to do so. Obviously not the case.

Now I don't know if I am going to have to run a standalone just for the ignition or be better off using the distributor instead.
The ECU controls both fuel and ignition and they are not on separate harnesses.
Old 07-21-07, 09:25 AM
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Power steering ecu? Since when does power steering need a computer? it's just a simple ydraulic spool valve system. Oh well I guess it's getting yanked since I converted to a manual rack then.
Old 07-21-07, 12:12 PM
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Originally Posted by Jarroyo
Power steering ecu? Since when does power steering need a computer? it's just a simple ydraulic spool valve system. Oh well I guess it's getting yanked since I converted to a manual rack then.
It's connected to the sensor behind the wheel, and if I'm correct, is what tells the car to turn off the blinkers when you turn, among other things.
Old 07-21-07, 12:24 PM
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The power steering is also speed sensitive so it knows when to engage and such. is the unit s4 s5? you could probably make some cash monies from it
Old 07-21-07, 12:56 PM
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does this have a part number you can see?
Old 07-22-07, 05:08 PM
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From looking at the wiring diagram it appears to have lts of other **** running through it as well. I'm starting to really hate this project. should've kept it stock and rebuilt the motor. (hangs head)


Dangerous: It's and S4

kborro01: Yeah theres one on there
Old 07-23-07, 03:53 AM
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Originally Posted by Jarroyo
Since when does power steering need a computer?
When it takes engine speed, road speed and steering wheel angle inputs and uses them to calculate the position of a stepper motor that controls a bypass valve that varies the level of steering assistance, so that assistance can be greatest at low speed and gradually reduce to zero at high speed. That's when.

it's just a simple ydraulic spool valve system.
Not even close...
Old 07-23-07, 06:06 AM
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Originally Posted by Jarroyo
From looking at the wiring diagram it appears to have lts of other **** running through it as well. I'm starting to really hate this project. should've kept it stock and rebuilt the motor. (hangs head)


Dangerous: It's and S4

kborro01: Yeah theres one on there
Should have just left the stock EM harness in the car. When you removed that you removed the cas signal to the ECU plus the ECU output to the coils.

Power steering box has zip to do with your project. Leave it in or take it out. You'll still have ignition if the stock EM harness is installed to the front harness and the ECU.
Old 07-24-07, 08:57 PM
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Well thats just great. LOL Thanks for the insight. So basically if I re-install the ECU I should get spark?


Originally Posted by HAILERS
Should have just left the stock EM harness in the car. When you removed that you removed the cas signal to the ECU plus the ECU output to the coils.

Power steering box has zip to do with your project. Leave it in or take it out. You'll still have ignition if the stock EM harness is installed to the front harness and the ECU.
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