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2013 Chevrolet Suburban
Platform: GMT 400, 800, 900

O2 sensor

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Old January 25th, 2013, 9:27 AM
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Default O2 sensor
Changed the o2 sensor in my 03 Tahoe and still getting the p0135. I read it may be a bad fuse. Anyone know which fuse I should change?
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Old January 25th, 2013, 10:48 AM
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Look under hood for a fuse block. Marked O2A, thats upstream, O2B downstream. However my diagram shows the heater resistor is off the pcm, thats what your code is saying.
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