1996 chev corsica v6 3.1 engine codes

I am trying top learn how to turn off engine codes (3.1 V6 engine) without the use of a scanner (some magical combination of various switches etc.).

We are trying to pass the new NY State emissions inspection. I installed new, properly gapped plugs, cleaned the EGR, want to try it now, if we still fail, I will install a new O2 sensor etc. Work my way through the various expenses until we pass.

first time on this website so please bear with me if I am slow to respond!

Thanks for any and all help.

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You need a scan tool to get the codes. Many parts stores will do it for free, and read the code so you know what is wrong with the car. Good Luck.