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O2 sensor test results. Plz advise. Thanks S70

posted by  eyyu on  Mon Feb 2 19:34 CST 2015
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last visit: Tue Apr 8 14:16 CST 2014
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2000 s70 NA check engine light came on. P0133 and P0140
Took both sensors off. Did bench test

Front: responses very quickly to torch heat up. 0 to 1V
Rear: covered with soot at first. Heat up to red hot burned off all soot responds slowly to heat up. 0.1 to 0.4 V

Does this mean the rear is bad? Thx for any inputs. Erwin






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New O2 sensor test results. Plz advise. Thanks [S70]
posted by  eyyu  on Mon Feb 2 19:34 CST 2015 >


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