[Mk2] [Turbo] No P/S after rev3 conversion

Anything to do with the electrics of the car.

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joola89
Posts: 27
Joined: Sat Feb 28, 2009 4:33 pm
Location: Lancaster

[Mk2] [Turbo] No P/S after rev3 conversion

Post by joola89 »

Hi guys,

I've just completed a rev3 conversion from a rev2.

I've lost power steering. Someone pointed me in the right direction with no joy. I understand that ecu is sending or not sending the correct signal to p/s.

How do I fix this? I read a thread somewhere but I lost the url.

Help please. Thanks in advance.
Shmed
Posts: 3568
Joined: Wed Dec 15, 2004 2:38 pm
Location: Worcestershire

Re: [Mk2] [Turbo] No P/S after rev3 conversion

Post by Shmed »

Can you post a pic of the firewall behind the boot carpet (with the ecu on it)? I looked at mine tonight, but as the loom was out of the car, I think the bit you need to unplug is out of my car.

It's not the ps relay you are looking for I don't think. It's a black plastic box.

Like I said though, Ryan.g will be able to tell you for sure.
January 2014
..the only thing I can promise for sure is slow progress.

May 2015
just have this niggling thought that if I rip out the wiring, then the car will never get out of the garage again.

Still in the garage...
joola89
Posts: 27
Joined: Sat Feb 28, 2009 4:33 pm
Location: Lancaster

Re: [Mk2] [Turbo] No P/S after rev3 conversion

Post by joola89 »

Image

As requested.[/img]
joola89
Posts: 27
Joined: Sat Feb 28, 2009 4:33 pm
Location: Lancaster

Re: [Mk2] [Turbo] No P/S after rev3 conversion

Post by joola89 »

Ryan.g?

Have I pm'd the wrong guy? Lol

Not gazyang? He did sound a little confused...
Shmed
Posts: 3568
Joined: Wed Dec 15, 2004 2:38 pm
Location: Worcestershire

Re: [Mk2] [Turbo] No P/S after rev3 conversion

Post by Shmed »

Hmm, not sure who Gazyang is..... Ryan.G sorted mine, and iirc, the black box in the bottom right of the picture is the offending article. Unplug that and it should sort you out I think.
January 2014
..the only thing I can promise for sure is slow progress.

May 2015
just have this niggling thought that if I rip out the wiring, then the car will never get out of the garage again.

Still in the garage...
toxo
IMOC Committee
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Location: The Toast Aisle
Contact:

Re: [Mk2] [Turbo] No P/S after rev3 conversion

Post by toxo »

The little black box in the corner is the fan controller, that won't help you :)

It will be something to do with the PS and PSCT pins on the ECU. When I converted to an ST205 ECU I had to disconnect PS to retain power steering.
IMOC-UK - the only club to win 'Best Club Stand' at JAE more than once, and twice in a row!
Shmed
Posts: 3568
Joined: Wed Dec 15, 2004 2:38 pm
Location: Worcestershire

Re: [Mk2] [Turbo] No P/S after rev3 conversion

Post by Shmed »

Really? I'm sure when Ryan fixed my PS issue, he didn't have to rewire anything. He just opened the boot, unplugged something and that fixed it.
January 2014
..the only thing I can promise for sure is slow progress.

May 2015
just have this niggling thought that if I rip out the wiring, then the car will never get out of the garage again.

Still in the garage...
joola89
Posts: 27
Joined: Sat Feb 28, 2009 4:33 pm
Location: Lancaster

Re: [Mk2] [Turbo] No P/S after rev3 conversion

Post by joola89 »

Pmsl. Definitely Ryan , not Gaz.

Ryan said "Remove pins PS and PSCT from Ecu connector and it will work bud", will give that a try once the sun pops out.

Wohoo.

Thanks guys.
Shmed
Posts: 3568
Joined: Wed Dec 15, 2004 2:38 pm
Location: Worcestershire

Re: [Mk2] [Turbo] No P/S after rev3 conversion

Post by Shmed »

:oops: sorry for sending you up the river, I obviously wasn't paying attention to what he did...
January 2014
..the only thing I can promise for sure is slow progress.

May 2015
just have this niggling thought that if I rip out the wiring, then the car will never get out of the garage again.

Still in the garage...
h20490
Posts: 192
Joined: Thu Jul 07, 2011 5:14 am

Re: [Mk2] [Turbo] No P/S after rev3 conversion

Post by h20490 »

Did you get it sorted?
joola89
Posts: 27
Joined: Sat Feb 28, 2009 4:33 pm
Location: Lancaster

Re: [Mk2] [Turbo] No P/S after rev3 conversion

Post by joola89 »

h20490 - no i haven't got it sorted.

I made a hash of it. Cut three wires and no joy. I don't have the tools to remove the pins properly.
I failed electronics at school see....

Using the image below, I cut the PSCT.
Image

Nice and easy, it's the middle one.
Now I've got 50/50 chance of cutting the correct one. From the middle, skip one and cut. Guessed wrong and did the same the other way.
No joy. I know this is correct ecu block because when I disconnect it and move the ignition to position 2, I have P/S! Hurray... but obvisily the engine doesn't run for long.

Now have i got a different harness? My connector block below:
Image

Or... is the ECU pinout completely wrong?

Going to end up cutting all the wires at this rate. Where am I going wrong?
joola89
Posts: 27
Joined: Sat Feb 28, 2009 4:33 pm
Location: Lancaster

Re: [Mk2] [Turbo] No P/S after rev3 conversion

Post by joola89 »

Sharing the wealth. It's the green and blue, wire with white dots. Sorted. Phew.
h20490
Posts: 192
Joined: Thu Jul 07, 2011 5:14 am

Re: [Mk2] [Turbo] No P/S after rev3 conversion

Post by h20490 »

Woohoo! :D
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