- First Name
- Brian
- Joined
- Jul 18, 2020
- Threads
- 20
- Messages
- 2,719
- Reaction score
- 6,243
- Location
- Wisconsin USA
- Vehicle(s)
- 1990 Bronco eddie bauer
- Your Bronco Model
- Badlands
- Thread starter
- #31
Same here. Jb4+fp tune+water/meth. Map 3 rocks!, map 2 for smoother driveability, map 4 is the danger zone (haven't tried w/6510 plugs yet, but it went into limp before). No need to flash back to stock...computer's failsafes work the sameSo the JB4 tune on top of ford Procal is no issue? Anyone run that for a lot of miles with an aggressive mapping? I know you can revert back to stock from Procal. Can this still be done with JB4 on top?
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