1997 Honda Civic Q&A

1997 Honda Civic Question: Why is the monitors reseting to zero after key is turned off?

Replaced O2 sensor and air filter box. Re- smoged car after repairs-passed. Customer took to Test only station failed three incomplete moitors. O2 Cat. and Evap. When I tested monitors passed. Cust took to T.O. Station turned car off then failed on monitors. Why? -
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