Good evening sir mere pass tata zip xl goods bs4 engine gadi hain jab hum gadi chalate waqt check engine light aata hai aur pick full down hota hai aur hum gadi 2 se 3 waqt gadi on off kiye ke baad mean check engine light jata hai aur pickup sahi hota hai aur phir kabhi 80 ya 90 km phir check light aata hai please ees ka solution problem batahiye please ees ka solution. Thanking you sir.