My Nissan Sylphy with a 2L Neo Direction Injection engine was running rich due to 2 faulty injectors (leaking) and I replaced all 4 injectors three months ago.
I have put 2000Km during this three months time now.
When I was running rich, my tail pipe was rich black; even after cleaning and riding 50Km in the city, it turned in to black again.
So, I knew that the black color is due to the rich condition and now, what do you guys think about my tailpipe tip now? I'm assuming that this is the perfect color anyone should have?
PS: I did a search before post this and found some forum discussions too. Some says that the brown color is okay and some says different stuffs. So, I wanted to clarify.
I'm thinking that the brown color is due to my rusted tailpipe and I have grey color above that.