Hello,

I have a 1998 Chevrolet Malibu. If I replace the EGR valve, with the check engine light on, how do I clear the computer to make the check engine light go off. I've already replaced the O2 sensors. The last on my list is the EGR valve. I was told, once I clear the computer, I have to drive it for so many miles before the computer registers everything and the light goes off. Is this true ? And if so, how many miles does it have to be driven ? Thanks for reading my question.

Best regards... :D

I was told, once I clear the computer, I have to drive it for so many miles before the computer registers everything and the light goes off. Is this true ? And if so, how many miles does it have to be driven ? Thanks for reading my question.


Failed the emission testing? You can clear the CEL with a scan tool which most auto parts stores let you borrow. If everything is okay, it will go into a closed loop fuel cycle once fully warmed up. If you disconnect the battery, the CEL will go out but it will take a long time (week or more, hundreds of miles) before it is ready for emission testing or the CEL comes on again.

Not gonna get much help in the 2008 and up section. Moving to correct section....