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Code 13, O2..but ?

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Old Apr 5, 2010 | 10:50 AM
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Default Code 13, O2..but ?

My 91 just pulled code 13

AZ shows FOUR of them?

Am I missing something.

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Old Apr 5, 2010 | 12:39 PM
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Your 91 only has one O2 sensor located in the driverside front Y-pipe.
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Old Apr 5, 2010 | 12:42 PM
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Yea, that's the only one I saw.

Another thing is my FSM refers to O2 sensor right, and O2 sensor left.

Tad confused.

I'll pick it up today at AZ and swap it, maybe my code 13 will go away?
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Old Apr 5, 2010 | 02:21 PM
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From the picture, looks like AZ also thinks your Corvette is FWD.
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Old Apr 5, 2010 | 04:19 PM
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Originally Posted by Vette73
From the picture, looks like AZ also thinks your Corvette is FWD.
And the only O2 sensor on the car is not heated. Code 13 will either be a bad senors, an open circuit on the purple wire or a bad ground. The sensor is grounded through the exhaust pipe to the engine so look for rust or corrosion on the threads.

Is the sensor new? Is the purple wire connected tightly to the pin on the sensor and is the plastic connector back a foot or connected and in good condition.
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Old Apr 5, 2010 | 04:30 PM
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Originally Posted by c4cruiser
And the only O2 sensor on the car is not heated. Code 13 will either be a bad senors, an open circuit on the purple wire or a bad ground. The sensor is grounded through the exhaust pipe to the engine so look for rust or corrosion on the threads.

Is the sensor new? Is the purple wire connected tightly to the pin on the sensor and is the plastic connector back a foot or connected and in good condition.
The sensor looks clean. I see only 1 wire from the end of it, it looks black in color, but my eyesight ain't the best. The exhausr pipe where it's connected looks rust free. The wire from it goes down under, zip tied to the temp and sending parts, which is all oily from the damned oil leak I have.
When hooked up to a scanner, the results fell in normal ranges, neither rich nor lean.
I can't see/get too the connector, I don't have the means to get under the car.
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Old Oct 24, 2022 | 01:24 PM
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Is the oxygen sensor different on a ls7 vs the non ls7 car ? My 07 Z has thrown the code a couple of times over the past 6 months. Do I have to make sure the replacement is specifically for the ls7 ?
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