Raidernation
Well-Known Member
Just got to work and will test the replacement JB+. Parked the car, popped the hood and locked the doors. Going to wait 30 minutes before the install. I will post the results ASAP.
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Checked this one before the install and this one was set at 3:00. I am going to keep it at this setting due to Cali gas being 91 Octane. 30 minutes is up and hopefully the new unit works.Let's hope the replacement unit is a success. Did you adjust the dial and what octane gas are you using?
I've been driving my A91 Supra extra hard lately to try and get a code to pop up and the JB+ continues to work as it should. The dial on my unit is turned to the 4:30 position (slightly below max boost setting).
Nope not messing around with anything under the hood. This whole experience has turned me off on engine mods.That's a shame. It's strange that some 2021 Supras aren't accepting the JB+ without throwing codes and some are working as intended.
Do you have a locked ECU? If so, I wonder if there's a safeguard or something within the ECU detecting the altered signal from the JB+. My A91 Supra has the unlocked ECU and is also using 93 octane for reference.
Sounds like you'll be upgrading to a JB4!
Me either. My experience is the same as yours and my ECU is also locked - 7/2/20. BMS also wanted me to try another one and said sometimes there are "duds" but I'm not screwing with the engine (for a while anyway) based on how the car reacted. Mine went back yesterday.Nope not messing around with anything under the hood. This whole experience has turned me off on engine mods.
ECU date?I have a 21 and a jb plus. No codes thrown
Keep us updated please.After a quick reply from BMS, it appears that a batch of these didn't complete a firmware update. I guess that's quality control issue?
I got the same response from BMS. Iāll give this thing one more try. Iāll post my results when I get the replacement. Truth be told I am expecting the same results.I've experienced the same exact thing on my JB+ I received just last week. After a quick reply from BMS, it appears that a batch of these didn't complete a firmware update. I guess that's quality control issue?
scary, but they're sending me a replacement. I kinda think I may not go further and return. Any other experiences out there?
I've experienced the same exact thing on my JB+ I received just last week. After a quick reply from BMS, it appears that a batch of these didn't complete a firmware update. I guess that's quality control issue?
scary, but they're sending me a replacement. I kinda think I may not go further and return. Any other experiences out there?
sorry to read about your problems with the JB4!Ok - Terry at BMS thinks its a hardware issue with newer Supras. Once again my build date is 9/20. Is their anyone with a similar build date using a JB+ and not running into check engine lights?