Guanfy
Active Member
- Joined
- Jun 22, 2019
- Messages
- 221
- Reaction score
- 91
- Points
- 28
- Location
- Crawfordville, Florida
- Vehicle Year
- 1994
- Make / Model
- Mazda B3000
- Engine Type
- 3.0 V6
- Transmission
- Manual
- 2WD / 4WD
- 2WD
- Total Lift
- Stock
- Total Drop
- Stock
- Tire Size
- 15in
Hello all, back again with another question about my B3000. I've been fighting with my truck running rich for several months now. Most of the time the check engine light stays off but it will flash on for 10 seconds or so then turn back off. When I pull codes they are codes like 173/177/188, all engine mix rich codes. I've replaced the 02 sensors with OEM bosch, checked for vacuum leaks and not found any and validated my fuel system. Injectors are brand new 19lb injectors. Air filter is not that dirty and I just replaced the MAF tonight. Doing that has made the check engine light more frequent and now the ECU is throwing a 173/177/188 codes all at the same time. I've also replaced the IAT for grins and giggles and that didn't really seem to change anything.
The only wrinkle to this is I know my cat is shot. honeycomb is loose inside and rattles around, but I don't think I have any back pressure issues.
Truck starts fine, idles roughly but it idles and is 100% drivable. However I'm only getting around 20mpg on a good day and its always smelling rich. It's driving me crazy. Anyone have any suggestions?
The only wrinkle to this is I know my cat is shot. honeycomb is loose inside and rattles around, but I don't think I have any back pressure issues.
Truck starts fine, idles roughly but it idles and is 100% drivable. However I'm only getting around 20mpg on a good day and its always smelling rich. It's driving me crazy. Anyone have any suggestions?