so i have determined that i have a bad egr valve. i bought a new one to install tomorrow. but my car isnt originally from cali and the new egr is the cali certified one. is this going to be an issue? will it throw codes or run better? thanks for your input!
" 94 z28 5.7l v8 lt1

 

Does the car have a manual (M6) or auto (A4) transmission? I bought my 94 LT1 M6 brand new in CA, and it is “50-State” certified, meaning no difference in the emission components or programming. But I believe the A4 cars were specific to CA. That could affect whether putting a “Cali cert” EGR on a 49-State car could cause a problem.