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can anyone tell me if i can stop my emmissions light coming on after i have put my de-cat on, the reason im asking i read somewhere about a blanking screw???? for the de-cat pipe should i of not put my sensor in my de-cat?
the second lambda doesn't change anything, it's basically a warning to tell you if the cat is faulty. if you want the light to go out, you can remove the sensor from the exhaust, but leave it plugged in so it's only seeing clean air. you will need a blank to replace where the sensor was screwed in.