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Help Identifying Broken Wires Please

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Old Aug 16, 2025 | 07:47 PM
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TransAmRiley's Avatar
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Default Help Identifying Broken Wires Please

While swapping my engine, I accidentally broke these green and tanish wires running along the passenger side fender. They are routed along with a small plastic tube (which I also broke) that I believe is an HVAC vacuum tube for moving the vents. The tube is meant to run to the back of the intake. In slightly unrelated news, I had the car tuned with the broken vacuum line in the back of the intake so now it's runs terribly and blocking the hole with tape only makes it worse. But I digress. Does anyone know what these wires are for?



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Old Sep 13, 2025 | 04:58 PM
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Those go to the right front wheel speed sensor if you have not figured it out yet.
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Old Sep 17, 2025 | 09:49 PM
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Originally Posted by TransAmRiley
While swapping my engine, I accidentally broke these green and tanish wires running along the passenger side fender. They are routed along with a small plastic tube (which I also broke) that I believe is an HVAC vacuum tube for moving the vents. The tube is meant to run to the back of the intake. In slightly unrelated news, I had the car tuned with the broken vacuum line in the back of the intake so now it's runs terribly and blocking the hole with tape only makes it worse. But I digress. Does anyone know what these wires are for?



Those wires are almost certainly for your oxygen sensors (O2 sensors). The green and tan ones are the most common colors for the heater circuits on the upstream sensors.

Fix the vacuum leak first by properly capping the line at the intake. Then check and repair those wires.
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Old Sep 19, 2025 | 07:26 PM
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Negative. O2 is in the engine harness those are from the body harness down to RF wheel speed sensor
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Old Sep 20, 2025 | 07:52 AM
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I'm leaning towards a wheel speed sensor and a simple check of the wiring on the LF wheel speed sensor could confirm this. If it is then it would be obvious the wires are broken at the RF wheel speed sensor.
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Old Sep 28, 2025 | 10:19 PM
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I never did find what those wires were for. They aren't for the headlight switch because the diagram shows a 3mm size, which is 12 AWG and these wires are much smaller. The fact that they are twisted is typical of a wheel speed sensor wiring, but in my 2000 SS, the wheel speed sensor wires are yellow and light blue for both the front left and front right speed sensors. Maybe the color mentioned in the FSM is wrong?

https://ls1tech.com/forums/conversio...connector.html
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