Notices
928 Forum 1978-1995
Sponsored by:
Sponsored by: 928 Specialists

My Sons electrical issue continues...

Thread Tools
 
Search this Thread
 
Old 02-05-2011 | 06:47 PM
  #1  
RPetty's Avatar
RPetty
Thread Starter
Racer
 
Joined: Sep 2009
Posts: 328
Likes: 0
From: Pebble Beach, Ca
Default My Sons electrical issue continues...

So I'm attempting to clean up the mess that some yahoo alarm guy installed.

Car wont start, well it did once. Not since...

Now under the steering wheel, I find... (see pics)

Plus a "kill" switch??

My plan is to:
Remove one at a time
Re splice the proper wire back to its "partner"

Anything to add guys?


Thanks
Attached Images   
Old 02-05-2011 | 07:30 PM
  #2  
IcemanG17's Avatar
IcemanG17
Race Director
 
Joined: Sep 2004
Posts: 16,271
Likes: 75
From: Stockton, CA
Default

WOW....thats scary...since its an unknown variable...... Heres what I would do....trace how the switch works and what it "cuts"...then splice those back together....which wouldn eliminate the "switch"...

1st things 1st.....contact Rich at Electronik repair....ask him for his PDF file for "no start diagnosis"....it is the holy grail of tracing no start issues..... Have Junior read it and memorize it (I'm guessing he has more time than you do!!)....grab your multi testor and start tracing current-resistance....

When I had issues with my 88S4....I did find a couple "issues" where I got weird readings....however it was NOT what caused my no start...it ended up being the fuel pump....
Old 02-05-2011 | 07:31 PM
  #3  
tmpusfugit's Avatar
tmpusfugit
Pro
 
Joined: Apr 2010
Posts: 654
Likes: 2
From: Magnolia TX, just north of Houston, Red 1984 S
Default

Originally Posted by RPetty

My plan is to:
Remove one at a time
Re splice the proper wire back to its "partner"

Anything to add guys?


Thanks
That is the approach I have used on several cars, all successfully ultimately....between the stereo installers and the alarm installers it is remarkable some of these cars ever ran following the "improvements".
Old 02-05-2011 | 08:23 PM
  #4  
Ed Scherer's Avatar
Ed Scherer
Addict
Rennlist Member
 
Joined: Jul 2001
Posts: 7,330
Likes: 110
From: Shawnee, KS, USA
Default

Originally Posted by IcemanG17
1st things 1st.....contact Rich at Electronik repair....ask him for his PDF file for "no start diagnosis"

Good luck!


Originally Posted by RPetty
Anything to add guys?
Probably don't need to say, but plenty of this:
Old 02-05-2011 | 08:36 PM
  #5  
vze2jshn's Avatar
vze2jshn
Rennlist Member
 
Joined: Aug 2003
Posts: 634
Likes: 9
From: Woodbridge, New Jersey
Default

When i bought my '78 OB back in '86 the previous owner had installed a toggle switch in the same area--it allows you to retract the radio antenna when listening to tapes or I pod thereby reducing the opportunity for the antenna to get all mucked up and become stuck. Stiil use it to this day. I also insatlled another toggle that allows the electric fan to run when the ignition is off--early OBs need ignition key in accessory position for fan to run. I sometimes turn the fan switch off to start the car if it draws too much power away from starter when running via temp sensor. Don't know if any of this applies to your sitiation.
Old 02-13-2011 | 04:55 PM
  #6  
RPetty's Avatar
RPetty
Thread Starter
Racer
 
Joined: Sep 2009
Posts: 328
Likes: 0
From: Pebble Beach, Ca
Default Here it is...

Finally got it out.

Now to repair the wire that they 'tapped" onto...
Attached Images  
Old 02-13-2011 | 05:25 PM
  #7  
RPetty's Avatar
RPetty
Thread Starter
Racer
 
Joined: Sep 2009
Posts: 328
Likes: 0
From: Pebble Beach, Ca
Default

Now I cant get the engine to crank.

I did before...

Hmmmm......
Old 02-13-2011 | 06:28 PM
  #8  
IcemanG17's Avatar
IcemanG17
Race Director
 
Joined: Sep 2004
Posts: 16,271
Likes: 75
From: Stockton, CA
Default

Originally Posted by RPetty
Finally got it out.

Now to repair the wire that they 'tapped" onto...
WOW....that is a nightmare.....

Now it won't crank at all? Is there voltage at the starter?
Old 02-13-2011 | 06:49 PM
  #9  
tmpusfugit's Avatar
tmpusfugit
Pro
 
Joined: Apr 2010
Posts: 654
Likes: 2
From: Magnolia TX, just north of Houston, Red 1984 S
Default

Is not a jumper required to allow the car to start with the alarm defeated? I am recalling a need to jumper 2 wires in one of the connecting sockets?
Old 02-13-2011 | 06:56 PM
  #10  
WallyP's Avatar
WallyP

Rennlist Member
Rennlist Site Sponsor

 
Joined: Jun 2001
Posts: 6,469
Likes: 11
From: Acworth, GA
Default

Is this on the '79? Are there any signs of a factory alarm?
Old 02-13-2011 | 07:21 PM
  #11  
tmpusfugit's Avatar
tmpusfugit
Pro
 
Joined: Apr 2010
Posts: 654
Likes: 2
From: Magnolia TX, just north of Houston, Red 1984 S
Default

Originally Posted by WallyP
Is this on the '79? Are there any signs of a factory alarm?
I was thinking the earlier cars did not have factory alarms, started in like '83?
Old 02-13-2011 | 08:06 PM
  #12  
Landseer's Avatar
Landseer
Rennlist Member
 
Joined: Sep 2007
Posts: 12,155
Likes: 371
From: Johnson City, TN
Default

Alarm offered beginning 79

His son's car is S4. What year?

Do you have the wiring diagrams?
Old 02-13-2011 | 08:48 PM
  #13  
RPetty's Avatar
RPetty
Thread Starter
Racer
 
Joined: Sep 2009
Posts: 328
Likes: 0
From: Pebble Beach, Ca
Default

Its a '87

I do have the wiring diagrams...pain to read.

I don't know if it had/has a factory alarm.
How do you tell.

I'm surprised, just removing the garbage from the "vampire" clamps, all should be back to factory.
Right?
Old 02-13-2011 | 09:22 PM
  #14  
tmpusfugit's Avatar
tmpusfugit
Pro
 
Joined: Apr 2010
Posts: 654
Likes: 2
From: Magnolia TX, just north of Houston, Red 1984 S
Default

Originally Posted by RPetty
Its a '87

I do have the wiring diagrams...pain to read.

I don't know if it had/has a factory alarm.
How do you tell.

I'm surprised, just removing the garbage from the "vampire" clamps, all should be back to factory.
Right?
I believe there is an 8 in connector where the original alarm controller plugged in? The vampire contol most likely interfaces with several of the wires that went to the original alarm controller. In order to start the car a pair of contacts in the alarm controller have be closed. With the vampire wiring/ controller removed, or the original alarm controller incapacitated there is nothing to complete the circuit, hence no start at all. In my car, which is an '84, I had to jumper 2 pins in the 8 pin connector. I don't remember which 2 and they may well be different on an '87
Old 02-13-2011 | 09:47 PM
  #15  
pcar928fan's Avatar
pcar928fan
Nordschleife Master
 
Joined: Apr 2008
Posts: 9,337
Likes: 4
From: Austin, TX
Default

OMG...nightmare!


Quick Reply: My Sons electrical issue continues...



All times are GMT -3. The time now is 05:39 AM.