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Testing O2 sensor

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#1

Old

09-25-2003, 09:48 PM

yal

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Join Date: Oct 1999

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Testing O2 sensor

I found the following quote in an old thread by Barrie. What does he mean by "shorting the input"?

Quote:

Testing Sensor Element: measure the output voltage of the sensor ceramic (black wire) under full-rich conditions; create this condition by shorting the input to the ECU (green wire). Specified tolerance is 0.45 - 1.0 VDC. Mine measured 0.48, suggesting that the ceramic element is getting weak.

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#2

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09-26-2003, 09:36 AM

carman850

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"Short the input " means connecting that input wire to the ground, you can either find out the ground wire from the connector and connect that input wire to it, or simply connect the input wire to any bare metal nearest to ECU.

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#3

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09-26-2003, 10:51 AM

yal

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Thank you very much!

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