> Will replacing the MAP sensor reset the Check Engine?

Will replacing the MAP sensor reset the Check Engine?

Posted at: 2015-01-07 
Yes it should if that's the only problem showing on the code test.Make sure to disconnect the negative battery cable for at least 5 minutes to clear the codes out of the system and it will shut the check engine light off too.Make sure you check the vacuum hose that connects to the map sensor for vacuum leaks which can set a map sensor code too.Failing to disconnect the negative battery cable after replacement can cause the correction factor for the old sensor to be applied to the new sensor.Disconnecting the battery also means it clears the KAM(keep alive memory)from the computer.This will require you to drive the vehicle up to 10 miles so that the computer can relearn its idle and running strategy.It basically just allows the computer to reset fuel,timing,idle,cruise,and wot conditions to the correct levels for good driveability.

You have said MAP and some hoses need replacing. Well the MAP has one of the hoses going to it in most cars and if that is one that needs replacing then do the hoses and see if the code goes away. To many people believe the sensor is always bad when it is just reading out of spec because of something else. When you repair the problem the code will go away there would be no reason to have the codes cleared, they will be seen as a inactive code and will not fail you for inspection. Will it pass? You'll have to wait and find out.

Your check engine light should go off but you will have to have the code cleared.

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My car is up for inspection soon, I have a 96 Buick century. I had a diagnostics exam and it showed that the problem was my MAP sensor needs replacing, and a couple hoses may need to be check, small problem. I want to know after this is replaced and everything is "reset" will this help the Check Engine light, and will I pass inspection?