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Old 10-13-2014, 11:12 PM   #1
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Default DTC 13 and 44

My new to me Olds 1992 88 has the Service Engine Light on. Codes are 13 and 44.

Is this as simple as a new oxygen sensor to correct? Any other things I should troubleshoot first? If so, what? Thanks!
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Old 10-14-2014, 12:09 AM   #2
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It'* possible.

If your good with a multimeter and know which pins are which, you can set your meter to mV and watch the display. If its constantly changing (like 200-600mV) then the sensor is working. But if your not seeing any voltage or you are, but its not changing a lot or is reading way too high, then you have a bad sensor.

If you do decide to get a sensor, stay away from Bosch. They suck in our cars.
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Old 10-14-2014, 09:49 AM   #3
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Denso is the brand I've used in my Subaru when my front O2 went out. They're also rather picky about sensors.

Decent choice for the Olds?
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Old 10-14-2014, 10:07 AM   #4
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Yea, or preferably AC Delco.
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Old 11-01-2014, 11:58 PM   #5
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AC Delco O2 sensor for $15 shipped off Amazon. Hopefully this will clear this light...which has apparently been on "a couple years now" per Grandma.
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Old 01-01-2015, 04:45 PM   #6
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Forgotten Update:

New O2 sensor took care of everything. No more codes.
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