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Performance Modifications for the NG900 / Old 9-3 This forum contains PERFORMANCE related Q&A's for the NG900 and 9-3. This may also include suspension.

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Old 08-05-2012, 06:22 PM   #1
Joe
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CEL / O2 Sensors

I replaced the starter on my 2000 9/3 and 1 hour later my CEL came on.
The diagnostic codes isolated the problem to the front & rear O2 sensors.
Additional testing showed no electric current to either sensor. The local mechanic stated that replacing the sensors had no value until the electric current problem is resolved. Any suggestions?
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Old 08-05-2012, 11:02 PM   #2
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What are the codes?
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Old 08-06-2012, 10:29 AM   #3
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Did you unplug the sensors when you changed the starter? They're in the gang of 3 4-pin connectors next to the intake manifold.

You can mix up the front and rear connectors, they are color coded to identify them.

Blue = crank sensor
Black = front O2 sensor
Grey = rear O2 sensor
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Old 08-07-2012, 08:38 AM   #4
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CEL / O2 Sensors

The codes are: P1135 and P1141

A local mechanic replaced the starter. I do not know if he disconnected the sensors at that time.
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Old 08-08-2012, 10:06 PM   #5
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Make sure front and back aren't swapped, and fuse 38 is good.
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