What has to reset for my car to pass inspection?

96+ cars have what are called "OBD2 readiness monitors" in the engine computer. These monitors check each emissions control system for proper operation. These monitors are either READY or NOT READY. If all the sensors are workng properly, the monitors should set within 50-100 miles. If there is a problem, the check engine light will illuminate, and the monitors will not set.

When you disconnect the battery for replacement it resets the computer chip and any stored codes. You therefore have to drive at least 50miles, it seems, with your car. Take the car out for a Sunday drive of one hour or more and take it back.

To expound further, the sensors send info to the computer chip which may then make changes to the different states in the engine. There has to develop a baseline to see if something is bad. That's the 50 miles.

He really should have explained himself more clearly. Your car does a series of self tests also known as readiness tests. It is common for these to fail inspection if the battery has been replaced recently. No horror story here provided you didn't have a service engine light on prior to installing the battery. Drive it as instructed and they will reset and you'll pass inspection. No worries. Hope this helps ease your mind.

If your sensors fail, then that means they are not working and need to be replaced in order for your engine to function properly. It is probably a sensor for your emissions, because they go the most. The only way for it to pass inspection is to really get it fixed, or buy a computer to shut it off.

50 miles won t do it ...some cars never reset , and some take 200 or more miles to reset...My bet take it to the dealer , keep all receipts and when you reach 500 $ get a free 2 year registration and a more cherry ied up vehicle