Close
Car Questions
RepairPal is your advocate for car care advice and guidance

Why is the monitors reseting to zero after key is turned off?

(1997 Honda Civic)
in Sun City, CA on May 02, 2012
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?
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide. Learn more

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
Hear air when applying pressure to brakes. Brakes go all the way to floor. This happened right after slamming brakes ...
The engine sometimes will not start and has to be jumped. The engine starts when jumped. The battery checks out as f...
Didn't find what you were looking for?