Fuel smell is stronger than normal
I have had my truck for 8 months, it does have high miles on it; 216,000. I have been having a stronger fuel smell. It is not throwing a code, so I am not sure I need to replace the O2 sensors. I do have custom exhaust. Flowmaster series 40 I think. The PO has it cut off after the cab and welded on. What I believe is the muffler section comes has to output ports. I think it is a cat back exhaust but i'm not certain. Obviously having a 4x4 lifted 4.0 V6 is not going to give me great gas mileage. I average 13MPG per fill up, in town driving only) But I think that doing some changes could help my issue.
Does anyone else have this fuel issue with no error codes? I have not had the truck scanned, so I don't know if there could be any invisible code problems.