stamina
Active Member
- Joined
- Nov 20, 2021
- Messages
- 227
- Reaction score
- 34
- Points
- 28
- Location
- Wilmington, NC
- Vehicle Year
- 1990
- Make / Model
- Ford Ranger
- Engine Type
- 4.0 V6
- Transmission
- Manual
- 2WD / 4WD
- 4WD
- Total Lift
- 4” suspension
- Tire Size
- 265/75/r16
- My credo
- built her in a storage unit
which port should i have my o2 sensor in? the newer y pipe for the 4.0 for the trucks with 2 o2 sensor ports had one closer to the manifold on each side as compared to the 2.9 and early 4.0 y pipe that had 1 o2 sensor bung at the collector. i have the early wiring harness/computer so i have 1 o2 sensor, i also have the newer style y pipe with 2 o2 ports, as you can actually still buy these new and i cut my original up. i’ve been running it in the passenger side port for the whole time and it’s worked just fine, was wondering if anyone knew if running it in the other bank would be better, also a lot of the headers that are sold for the 4.0 have 2 bungs as opposed to one.
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