changed the battery in my 06 mazda 3,went to go get it inspected and failed a odb2 test

Asked by Oct 30, 2016 at 08:43 PM about the 2006 Mazda MAZDA3 s

Question type: General

2 Answers


On some vehicles disconnecting the battery still clears the computer. Drive it for a few days with the gas tank between 3/4 and 1/4 so the computer can run the diagnostics on all the systems and set the readiness monitors. Then you'll pass. You can pass with 1 but only 1 readiness monitor not set. HTH. -Jim


Yes, u actually cleared stored data and now it has to re scan sensors. As mentioned above. If u need to get it smoged ASAP. drive it on the freeway for about 50 miles and on the street for anither 25 and it should be ready for smog

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