eric27
Member
- Joined
- August 25, 2010
- Messages
- 34
- Reaction score
- 0
- City, State
- northwest ohio
- Year, Model & Trim Level
- 93 4.0 xlt
i bought my truckabout a year ago. recently i noticed a "patch" on my cat. im guessing that the insides are gone. my trucks semi loud. will that cause low mpg? also would a bad o2 cause 11 mpg? when my maf is connected i get black sooty smoke and the truck sounds like its under water, mpg goes to bout 8 mpg. unplugged i get the 11 mpg but drivability is way better.....yeah way better unplugged, sounds funny. need help