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Driver side o2 plugs into???

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Old Jul 31, 2006 | 03:49 AM
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Default Driver side o2 plugs into???

Anyone know where the driver side front o2 plugs into the wiring harness?

My SES light has been on for awhile. I finally had the car up on jackstands this weekend and I found out why. The o2 sensor comes out, has a connector hooked up to it then the 4 wires comming out of that connector were draging the ground. The car has LT headers on it. I'm hoping the long wires hooked up to the sensor are o2 extensions for the headers.

Last edited by Black01M6SS; Jul 31, 2006 at 04:00 AM.
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Old Jul 31, 2006 | 06:53 AM
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Pics would be great, So you have the harness coming off the sensor right? It should connect on the pass. side up towards and beside the motor. You didnt notice the car running weird?
J
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Old Jul 31, 2006 | 07:47 AM
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Look for a plug right next to the k-member on the driverside, bottom of block.

The harness comes down behind the alternator.
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Old Jul 31, 2006 | 09:52 AM
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What he said.
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Old Jul 31, 2006 | 05:16 PM
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Found it. Thanks guys. Strange thing...I didn't notice any differance in the way it ran.
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Old Aug 1, 2006 | 07:50 AM
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Run out to Autozone and have them scan your computer for it's codes. Would help us in diagnosing your problems. The scan is free.
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Old Aug 1, 2006 | 05:21 PM
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Pretty sure the problem is just that the sensor is unplugged. Looks like whoever installed the headers didn't zip tie the o2 extension up and something snagged it. Luckly the connector behind the alt is still good so it looks like all I need is a new extension.

SES light is never on when I start the car. It comes on after the engine gets to closed loop temp. I'm not sure if the car stays in open loop because of the sensor or if the computer senses the open in the circuit and uses the other sensor to make corrections. Either way, It doesn't run bad like I would have figured.
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Old Aug 1, 2006 | 05:55 PM
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Originally Posted by Black01M6SS
Pretty sure the problem is just that the sensor is unplugged. Looks like whoever installed the headers didn't zip tie the o2 extension up and something snagged it. Luckly the connector behind the alt is still good so it looks like all I need is a new extension.

SES light is never on when I start the car. It comes on after the engine gets to closed loop temp. I'm not sure if the car stays in open loop because of the sensor or if the computer senses the open in the circuit and uses the other sensor to make corrections. Either way, It doesn't run bad like I would have figured.
do a computer reset, and let the computer learn everything again.
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