I got a apex avc-r installed and the cel (check engine light) was on after the installation. The mechanic said that it was all good because he had to remove the stock boost controller.

I don't want the light to be on just in case something becomes faulty.

Has Anybody had this problem or have this problem?

 

CEL came on because stock boost solenoid was removed. Gotta check if I can leave it plugged in. Will get back to you.