 12 - Pin Jumper?, I don't have one |
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| BPic |
 Feb 2 2020, 10:30 AM
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#1
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Member  Group: Members Posts: 341 Joined: 5-February 18 From: Miami, Florida Member No.: 21,864 Region Association: South East States 
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All of the 12-pin diagrams I see have a green jumper wire from pin 11 to pin 10. I don't have this on my 72. It's a 2056 with carbs if that matters. (IMG:style_emoticons/default/confused24.gif)
Do I need to add it? What is it for or what are the benefits? Thanks!! |
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| bbrock |
Feb 2 2020, 10:45 AM
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#2
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914 Guru Group: Members Posts: 5,269 Joined: 17-February 17 From: Montana Member No.: 20,845 Region Association: Rocky Mountains
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Edit: It shuttles power to the heater fan relay. You probably don't need it.
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| BPic |
Feb 2 2020, 10:48 AM
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#3
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Member Group: Members Posts: 341 Joined: 5-February 18 From: Miami, Florida Member No.: 21,864 Region Association: South East States
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Thanks @bbrock looks like I’ll need to add it.
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| bbrock |
Feb 2 2020, 10:51 AM
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#4
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914 Guru Group: Members Posts: 5,269 Joined: 17-February 17 From: Montana Member No.: 20,845 Region Association: Rocky Mountains
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QUOTE(BPic @ Feb 2 2020, 09:48 AM)  I just edited my reply after taking a closer look at the schematic. IIRC, your are deleting your heat so don't need it? |
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| BPic |
Feb 2 2020, 10:54 AM
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#5
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Member Group: Members Posts: 341 Joined: 5-February 18 From: Miami, Florida Member No.: 21,864 Region Association: South East States
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Correct. No heat. I just unwrapped the rest of the engine harness and the green to pin 11 and the white to pin 12 are cut and taped.
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| bbrock |
Feb 2 2020, 11:00 AM
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#6
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914 Guru Group: Members Posts: 5,269 Joined: 17-February 17 From: Montana Member No.: 20,845 Region Association: Rocky Mountains
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QUOTE(BPic @ Feb 2 2020, 09:54 AM) Correct. No heat. I just unwrapped the rest of the engine harness and the green to pin 11 and the white to pin 12 are cut and taped. Reading from the 73 schematic: White to pin 12 connects to pin 13 on the 14-pin connector and both pins take power from the fuel pump relay? |
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| BPic |
Feb 2 2020, 11:05 AM
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#7
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Member Group: Members Posts: 341 Joined: 5-February 18 From: Miami, Florida Member No.: 21,864 Region Association: South East States
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QUOTE(bbrock @ Feb 2 2020, 12:00 PM) QUOTE(BPic @ Feb 2 2020, 09:54 AM) Correct. No heat. I just unwrapped the rest of the engine harness and the green to pin 11 and the white to pin 12 are cut and taped. Reading from the 73 schematic: White to pin 12 connects to pin 13 on the 14-pin connector and supplies fuel pump. Was your pump relocated with power tapped from somewhere other than the black/red wire? Well the harness is a hack job that I’m rebuilding with 2 harnesses. I put the pump up front and can tap into the original wires. May need to take a break from it. Looking at 2 harness both were hacked a bit. It’s getting a little confusing!!! |
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| JeffBowlsby |
Feb 2 2020, 11:53 AM
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#8
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914 Wiring Harnesses Group: Members Posts: 8,510 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None
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A 72 ignition harness does not jumper pins 10-11. The fan on a 70-72 car has individual wires from 10 & 11 routing directly to the fan in the ignition harness. The fan on a 73-76 car is fed from two wires branching out of the chassis harness. Don’t confuse the two, they are different.
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| bbrock |
Feb 2 2020, 12:14 PM
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#9
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914 Guru Group: Members Posts: 5,269 Joined: 17-February 17 From: Montana Member No.: 20,845 Region Association: Rocky Mountains
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QUOTE(JeffBowlsby @ Feb 2 2020, 10:53 AM) A 72 ignition harness does not jumper pins 10-11. The fan on a 70-72 car has individual wires from 10 & 11 routing directly to the fan in the ignition harness. The fan on a 73-76 car is fed from two wires branching out of the chassis harness. Don’t confuse the two, they are different. Thanks Jeff! Yes, I was responding based on a 73 and POs car is a 72. Good catch! |
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