Hlw everyone mere pass passo 2007 model thi gari chalny m behtreen thi or achi average deti thi lekin gari ki race zada thi m nahi tha choty bhai na jaa k mechanic ko check krwai toh usnh kaha k catalytic body ka issue ha bhai k mutaqib us n engine k qareeb se hi kuch utara usky bd gari ki fuel consumption bht buri hogai ha any advice?