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pushkick
Samba Member
Joined: August 09, 2007
Posts: 1366
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 Posted: Thu Jan 18, 2018 12:56 pm Post subject: Power steering switch wire |
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anyone know where the red with white tracer wire for the power steering pressure switch is attached in the wiring harness? bently on page 97.206 shows it welded at the G1 and then goes to fuel injector, oxy, full pump relay, i am not getting the 12 volts at ps switch red/wh wire. any help is appreciated
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1990 vw automatic camper |
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crazyvwvanman
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Joined: January 28, 2008
Posts: 9936
Location: Orbiting San Diego
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| Posted: Thu Jan 18, 2018 1:34 pm Post subject: Re: Power steering switch wire |
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In your year harness the PS switch wire only has power when the fuel pump relay is turned on. The ECU controls the FP relay and only turns it on when it thinks the engine is turning. Of course it also turns it on for a second or two when the key is first turned on.
Mark
| pushkick wrote: |
| anyone know where the red with white tracer wire for the power steering pressure switch is attached in the wiring harness? bently on page 97.206 shows it welded at the G1 and then goes to fuel injector, oxy, full pump relay, i am not getting the 12 volts at ps switch red/wh wire. any help is appreciated |
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pushkick
Samba Member
Joined: August 09, 2007
Posts: 1366
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| Posted: Thu Jan 18, 2018 2:12 pm Post subject: Re: Power steering switch wire |
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i am using a multimeter so it shouldnt be a problem ( has a very high input impedance) . but i forgot about the key on and fuel pmp on for a few seconds before engine runs. will have to test for that and while engine is running. any idea where they tied the r/w wire into the harness? i am trying to get my idle controller stabilizer to work the icv seems to work but i want to make sure the inputs to idle control stabilizer are ok.
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i see said the blind man to his deaf dog
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there is no deed to the planet earth
1990 vw automatic camper |
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crazyvwvanman
Samba Member
Joined: January 28, 2008
Posts: 9936
Location: Orbiting San Diego
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| Posted: Thu Jan 18, 2018 2:58 pm Post subject: Re: Power steering switch wire |
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The PS switch power is battery voltage, from the fuel pump relay, gets same power at same time as fuel pump does. When engine is running it gets alternator voltage. This is true for everything tied to G1
The G1 switched power junction is inside the Digifant wiring harness sheath, just as it says on page 97.203
The above is for a 90 harness. Other years can vary in these details.
Mark |
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Steve M.
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Joined: July 30, 2013
Posts: 6833
Location: Fort Lauderdale, Fl.
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| Posted: Thu Jan 18, 2018 4:28 pm Post subject: Re: Power steering switch wire |
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Do yourelf a favor and put a fuse on it. Evidence that it causes fuel pump relay wires to burn.
Search the threads on it.
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pushkick
Samba Member
Joined: August 09, 2007
Posts: 1366
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| Posted: Thu Jan 18, 2018 4:42 pm Post subject: Re: Power steering switch wire |
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| crazyvwvanman wrote: |
The PS switch power is battery voltage, from the fuel pump relay, gets same power at same time as fuel pump does. When engine is running it gets alternator voltage. This is true for everything tied to G1
The G1 switched power junction is inside the Digifant wiring harness sheath, just as it says on page 97.203
The above is for a 90 harness. Other years can vary in these details.
Mark |
where is the G1 switched power junction in the sheath ? any idea on the location i want to make sure the connection is good. don want to pull the whole thing out.
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i see said the blind man to his deaf dog
i am going to quit smoking and drinking and die a healthy man. gotta laugh
there is no deed to the planet earth
1990 vw automatic camper |
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pushkick
Samba Member
Joined: August 09, 2007
Posts: 1366
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| Posted: Thu Jan 18, 2018 4:46 pm Post subject: Re: Power steering switch wire |
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| Steve M. wrote: |
Do yourelf a favor and put a fuse on it. Evidence that it causes fuel pump relay wires to burn.
Search the threads on it. |
thanks this is what i was planning to do besides fixing the idle stabilizer . i found some threads on what others have done on how to fuse this circuit.
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i see said the blind man to his deaf dog
i am going to quit smoking and drinking and die a healthy man. gotta laugh
there is no deed to the planet earth
1990 vw automatic camper |
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djkeev
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Joined: September 30, 2007
Posts: 32625
Location: Reading Pennsylvania
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pushkick
Samba Member
Joined: August 09, 2007
Posts: 1366
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| Posted: Thu Jan 18, 2018 5:09 pm Post subject: Re: Power steering switch wire |
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i found a thread that shows where someone else found the splice G1 in the harness may help me find mind.
https://www.thesamba.com/vw/forum/viewtopic.php?t=...p;start=60
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i see said the blind man to his deaf dog
i am going to quit smoking and drinking and die a healthy man. gotta laugh
there is no deed to the planet earth
1990 vw automatic camper |
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pushkick
Samba Member
Joined: August 09, 2007
Posts: 1366
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| Posted: Fri Jan 19, 2018 5:26 pm Post subject: Re: Power steering switch wire |
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i found this pic of the wire (from fuel pump relay)is this the wire that should be fused on a 2.1 digifant?
https://uploads.tapatalk-cdn.com/20180106/ec694cb3a59aea6344c521202fd2438a.jpg
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i see said the blind man to his deaf dog
i am going to quit smoking and drinking and die a healthy man. gotta laugh
there is no deed to the planet earth
1990 vw automatic camper |
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dhaavers
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Joined: March 19, 2010
Posts: 7757
Location: NE MN (tinyurl.com/dhaaverslocation)
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| Posted: Fri Jan 19, 2018 5:31 pm Post subject: Re: Power steering switch wire |
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That's the one! 
- Dave
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crazyvwvanman
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Joined: January 28, 2008
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Location: Orbiting San Diego
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| Posted: Fri Jan 19, 2018 5:34 pm Post subject: Re: Power steering switch wire |
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That is the constant battery voltage power supply wire for the entire fuel injection system.
Yes, that is the wire people commonly put a fuse in.
I use 7.5 amp, fine so far.
Mark
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dhaavers
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| Posted: Fri Jan 19, 2018 8:43 pm Post subject: Re: Power steering switch wire |
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FWIW: Member farfromslow recently posted a pic of a perfect install:
- nice heat shrink on connectors...
- clear fuse holder (assume for "glows-when-it-blows" type fuse)...
- nothing more or less than needed...
Git 'r done!
- Dave
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86 White Wolfsburg Westy Weekender
"The WonderVan"
<EDITED TO PROTECT INNOCENT PIXELS>
Last edited by dhaavers on Fri Jan 19, 2018 9:00 pm; edited 1 time in total |
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peterT3syncro
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Joined: September 27, 2016
Posts: 72
Location: australia
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| Posted: Fri Jan 19, 2018 8:57 pm Post subject: Re: Power steering switch wire |
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What does this switch do exactly?
My syncro is about to get PS
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Type 3 Syncro Kombi, EJ22 Subaru |
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dhaavers
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Location: NE MN (tinyurl.com/dhaaverslocation)
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| Posted: Fri Jan 19, 2018 9:03 pm Post subject: Re: Power steering switch wire |
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^^^ It's to boost idle to prevent stalling when wheel is turned to full lock...
- Dave
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Alaskaberrys 
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Joined: June 19, 2016
Posts: 1001
Location: SE Alaska
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| Posted: Tue Jun 25, 2019 12:32 pm Post subject: Re: Power steering switch wire |
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I made a note to myself to “fuse and insulate the power steering” when I got to our van after seeing a picture of a uninsulated melted power steering wire posted on some thread a few months back. I failed to note the thread... 
Anyone have links? Pictures?
Edit; I see the fuse pictured above, so that part I can do. Just not sure the bare spade connection (..if it was that)
Edit #2; Is this it? (Photo curtesy borninabus)
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VicVan
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borninabus
Samba R&D Dept.
Joined: May 18, 2006
Posts: 4539
Location: Arizona Highways
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| Posted: Tue Jun 25, 2019 1:02 pm Post subject: Re: Power steering switch wire |
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that is the wire that caused my FI harness meltdown.
it was not a factory terminal.
better believe that my "new" harness has insulated terminals on the the PS switch and is fused inside the black box 
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Steve M.
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Posts: 6833
Location: Fort Lauderdale, Fl.
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| Posted: Tue Jun 25, 2019 1:21 pm Post subject: Re: Power steering switch wire |
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Alaskaberrys, here is a good picture of the wire to fuse connected to the standoff in the box.
Here also is the thread on the wiring:
https://www.thesamba.com/vw/forum/viewtopic.php?t=692179&highlight=power+steering+wire+fuse
| dhaavers wrote: |
FWIW: Member farfromslow recently posted a pic of a perfect install:
- nice heat shrink on connectors...
- clear fuse holder (assume for "glows-when-it-blows" type fuse)...
- nothing more or less than needed...
Git 'r done!
- Dave |
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This free advice is worth exactly what you paid for it.
There are seven days in a week. Someday is not one of them.
Last edited by Steve M. on Tue Jun 25, 2019 1:29 pm; edited 1 time in total |
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0to60in6min
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Joined: November 27, 2006
Posts: 3416
Location: OR & CA (Oregon/California)
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| Posted: Tue Jun 25, 2019 1:26 pm Post subject: Re: Power steering switch wire |
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hi Mark,
"uninsulated melted power steering wire"
that's a bad design... the wires at the PS switch are very close to intake manifold... vibrations etc.. and the wires will touch the manifold... well... harness melt down or even fire in the engine... fuse it and insulated is a good idea... they sell L shape spade connector with plastic cover...
https://www.kavwebgoods.com/index.php?main_page=product_info&products_id=306 |
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