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So I've had an O2 sensor DTC for the last few months that keeps coming back....

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Old 05-20-2004, 05:00 PM
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Default So I've had an O2 sensor DTC for the last few months that keeps coming back....

but no CEL yet. Should I wait until a CEL comes on or just fix it now??
Old 05-20-2004, 05:22 PM
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Default Sorry about the vagueness of the question...here's the code from the list...

17521- Oxygen (Lambda) Sensor: B1 S1: Internal Resistance Too High
P1113-35-10---Intermittent
Old 05-20-2004, 05:44 PM
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Default I'd fix it.

If you aren't under warranty, you can use the VW O2 sensors. STFA for the part number.

-Dave Pramanik
Old 05-20-2004, 05:44 PM
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Default I've had that too for the past few months. comes and goes.

sometimes it comes on within a few days, and now about 2 weeks and no DTC. No CEL either.

Care still runs great, so...
Old 05-20-2004, 05:47 PM
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Car runs fine and is still under warranty....just compiling a list of things to have fixed in 1 stop
Old 05-20-2004, 07:49 PM
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Default log 02 voltage

I was running lean due to a bad 02 sensor.
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