 Wiring question on a 1.8 l-Jet, FI part of dual relay.... |
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| jim_hoyland |
 Feb 3 2007, 09:38 PM
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#1
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Get that VIN ?  Group: Members Posts: 9,564 Joined: 1-May 03 From: Sunset Beach, CA Member No.: 643 Region Association: Southern California 
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One branch of the L-Jet ignition harness goes to the left side of a dual relay. What is the funciton of:
Yellow Red/Black Black |
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| r_towle |
Feb 3 2007, 09:51 PM
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#2
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Custom Member Group: Members Posts: 24,679 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States
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if you show me a pic, I will go out in the freezing cold barn and tell you what it does...
Rich |
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| ClayPerrine |
Feb 3 2007, 10:58 PM
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#3
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Life's been good to me so far..... Group: Admin Posts: 15,958 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille
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QUOTE(jim_hoyland @ Feb 3 2007, 09:38 PM)  One branch of the L-Jet ignition harness goes to the left side of a dual relay. What is the funciton of: Yellow Red/Black Black Yellow - Goes to the 4 pin connection on the left rear of the relay board. Used to close the fuel pump portion of the relay when the starter is engaged. Red/Black - comes from the double relay, goes to pin 12 on the 12 pin engine harness connector. This is the same pin where the white wire for the aux air regulator on the D-jet connects. It sends the power back to the fuel pump circuit from the double relay. There are 2 black wires. One goes to the positive side of the coil (probably the one you are thinking of) and the other goes to the negative side of the coil. Hope that helps. |
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| jim_hoyland |
Feb 4 2007, 09:05 AM
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#4
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Get that VIN ? Group: Members Posts: 9,564 Joined: 1-May 03 From: Sunset Beach, CA Member No.: 643 Region Association: Southern California
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Thanks Clay.
I know where that yellow wire jumps. I'm in the process of rebuiling a harness from a donar. Jim QUOTE(ClayPerrine @ Feb 3 2007, 08:58 PM) QUOTE(jim_hoyland @ Feb 3 2007, 09:38 PM) One branch of the L-Jet ignition harness goes to the left side of a dual relay. What is the funciton of: Yellow Red/Black Black Yellow - Goes to the 4 pin connection on the left rear of the relay board. Used to close the fuel pump portion of the relay when the starter is engaged. Red/Black - comes from the double relay, goes to pin 12 on the 12 pin engine harness connector. This is the same pin where the white wire for the aux air regulator on the D-jet connects. It sends the power back to the fuel pump circuit from the double relay. There are 2 black wires. One goes to the positive side of the coil (probably the one you are thinking of) and the other goes to the negative side of the coil. Hope that helps. |
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| ClayPerrine |
Feb 4 2007, 01:18 PM
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#5
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Life's been good to me so far..... Group: Admin Posts: 15,958 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille
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We are reinstalling the L-Jet FI back onto Doug's car on Sat. I will get someone to take some detailed shots of the harness for you.
QUOTE(jim_hoyland @ Feb 4 2007, 09:05 AM) Thanks Clay. I know where that yellow wire jumps. I'm in the process of rebuiling a harness from a donar. Jim QUOTE(ClayPerrine @ Feb 3 2007, 08:58 PM) QUOTE(jim_hoyland @ Feb 3 2007, 09:38 PM) One branch of the L-Jet ignition harness goes to the left side of a dual relay. What is the funciton of: Yellow Red/Black Black Yellow - Goes to the 4 pin connection on the left rear of the relay board. Used to close the fuel pump portion of the relay when the starter is engaged. Red/Black - comes from the double relay, goes to pin 12 on the 12 pin engine harness connector. This is the same pin where the white wire for the aux air regulator on the D-jet connects. It sends the power back to the fuel pump circuit from the double relay. There are 2 black wires. One goes to the positive side of the coil (probably the one you are thinking of) and the other goes to the negative side of the coil. Hope that helps. |
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| jim_hoyland |
Feb 4 2007, 01:31 PM
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#6
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Get that VIN ? Group: Members Posts: 9,564 Joined: 1-May 03 From: Sunset Beach, CA Member No.: 643 Region Association: Southern California
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Thanks. Shoot one showing the bottom of the dual relay too.
QUOTE(ClayPerrine @ Feb 4 2007, 11:18 AM) We are reinstalling the L-Jet FI back onto Doug's car on Sat. I will get someone to take some detailed shots of the harness for you. QUOTE(jim_hoyland @ Feb 4 2007, 09:05 AM) Thanks Clay. I know where that yellow wire jumps. I'm in the process of rebuiling a harness from a donar. Jim QUOTE(ClayPerrine @ Feb 3 2007, 08:58 PM) QUOTE(jim_hoyland @ Feb 3 2007, 09:38 PM) One branch of the L-Jet ignition harness goes to the left side of a dual relay. What is the funciton of: Yellow Red/Black Black Yellow - Goes to the 4 pin connection on the left rear of the relay board. Used to close the fuel pump portion of the relay when the starter is engaged. Red/Black - comes from the double relay, goes to pin 12 on the 12 pin engine harness connector. This is the same pin where the white wire for the aux air regulator on the D-jet connects. It sends the power back to the fuel pump circuit from the double relay. There are 2 black wires. One goes to the positive side of the coil (probably the one you are thinking of) and the other goes to the negative side of the coil. Hope that helps. |
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| jim_hoyland |
Feb 7 2007, 08:35 PM
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#7
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Get that VIN ? Group: Members Posts: 9,564 Joined: 1-May 03 From: Sunset Beach, CA Member No.: 643 Region Association: Southern California
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Been looking at my dual relay wiring; couple of questions:
1. Is the yellow hot only during starting and sending power to the red/black ? 2. Is the red/black hot during normal operation ? |
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| ClayPerrine |
Feb 7 2007, 08:58 PM
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#8
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Life's been good to me so far..... Group: Admin Posts: 15,958 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille
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QUOTE(jim_hoyland @ Feb 7 2007, 08:35 PM) Been looking at my dual relay wiring; couple of questions: 1. Is the yellow hot only during starting and sending power to the red/black ? 2. Is the red/black hot during normal operation ? Yellow is only hot when the starter is engaged. Red/Black is hot any time the key is on. |
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