Ok so I had a code 41 replaced o2 sensors and the code went away when I replaced the afr sensor but…… my car still runs ragged and I drive it no check engine light. Now I bought the smoke machine and I’m getting smoke coming out 3 areas. The gasket intake to throttle,the intake to egr the gasket and I see it coming out the center of the tps sensor. I do belive the plastic price is in there. Is that normal? It a new sensor I just bought it .