B58 JB Plus Quick Install Tuner ....

[ColonelAdama]

Yea just adjusted it a little bit ago. I think it’s at around 1pm now? It’s a little lower than the default. I went for a small drive after, and changing gears is a lot better/smoother. Not sure if I can feel a whole lot of difference in hp, need to go for another quick drive.

smoother + not slower is still better

Sponsored

 

[swrdply400mrelay]

Yea just adjusted it a little bit ago. I think it’s at around 1pm now? It’s a little lower than the default. I went for a small drive after, and changing gears is a lot better/smoother. Not sure if I can feel a whole lot of difference in hp, need to go for another quick drive.

Do you have a Dragy or a dyno?

Could do pulls on a dyno with and without.

Or do a 60-120 run with the Dragy.

If there is a difference in dyno or Dragy then may be your butt dyno is broken ?

 

[CarGuy11]

There’s a difference.

 

[shaaans]

Do you have a Dragy or a dyno?

Could do pulls on a dyno with and without.

Or do a 60-120 run with the Dragy.

If there is a difference in dyno or Dragy then may be your butt dyno is broken ?

My butt dyno definitely was broken. It feels a bit more powerful at 3pm, but shifting is not smooth at all. At around 1pm it feels a lot better shifting but not as powerful. I don’t mind the slight power decrease, but I feel like I’m not getting as aggressive downshifts after installing the JB+. Could just be placebo, but I feel like before installing it downshifts were a lot more aggressive and my pops/burbles were louder. The only other real performance mod I have is the AA Catted DP. After engine cools down I might actually go down to 12pm, that might be the sweet spot for me.

 

[FRSBRZGT86FAN]

Does anyone have any tips to get the cable off the tmap sensor before putting the JB+ on?
Having a really tough time removing the cable even with the white latch unclipped properly

 

[FRSBRZGT86FAN]

Well after starting this thread... I have finally given in now that I’m over 1500 miles. Appears the hiccups are no longer. Installed today.

Unfortunately I have a ‘rain delay’ for my test drive. ?

Did you happen to have a hard time getting the stock plug off? Any tips to removing it?

 

[66joeyn]

Does anyone have any tips to get the cable off the tmap sensor before putting the JB+ on?
Having a really tough time removing the cable even with the white latch unclipped properly

Yes, it took a little elbow grease. Be careful, there is a video online that tells you to remove the wrong one and I was struggling with that one first, then figured it could not be that hard and looked up a different video and realized it was the wrong plug, but they look exactly alike.

 

[FRSBRZGT86FAN]

This is a pic off of the JB+ install guide that I've drawn on. Pull the #1 tab out. Squeeze #1 down and pull the connector off gently while lightly sticking the pick tool in between the male and female connectors at #2. It came off VERY easily. Don't try to force anything.

You actually are a saint, this method is how i got mine installed just now, took way less time.

It's currently on around 3-3.5 psi setting based on each 'pip' being .5 psi

Thanks!

 

[FRSBRZGT86FAN]

Yes, it took a little elbow grease. Be careful, there is a video online that tells you to remove the wrong one and I was struggling with that one first, then figured it could not be that hard and looked up a different video and realized it was the wrong plug, but they look exactly alike.

I ended up using the pick tool method and it was a world easier to install

 

[FRSBRZGT86FAN]

After running it today for the first time after install, I immediately got a CEL and the car acted like it was about to stall and started surging. after removing it immediately went back to normal again.

Contact BM support to see if I got a dud unit

 

[swrdply400mrelay]

After running it today for the first time after install, I immediately got a CEL and the car acted like it was about to stall and started surging. after removing it immediately went back to normal again.

Contact BM support to see if I got a dud unit

Did they fix it? IIRC someone had the same problem and needed a software update

 

[Fuji808]

jb+ is plug n play.
jb4 has the firmware update version 158.

 

[swrdply400mrelay]

jb+ is plug n play.
jb4 has the firmware update version 158.

https://www.supramkv.com/threads/20...lled-and-cel-that-wont-clear.8287/post-125786

 

[Andrew4Supra]

My JB+ has been flawless for over 3 years. I left it at the stock setting.

 

[FRSBRZGT86FAN]

jb+ is plug n play.
jb4 has the firmware update version 158.

Did they fix it? IIRC someone had the same problem and needed a software update

Yes there is indeed a firmware flashed onto its eeprom that's on the board. I noticed mine came with max setting and an extra chip on the side where other photos on the forum showed a resistor. They have sent a new unit that arrives on Monday and I will test and let everyone know how it goes again. Hoping to have no issues on the second.

My JB+ has been flawless for over 3 years. I left it at the stock setting.

Awesome! Mine came with it on the max setting, I'm guessing yours had it moved down a bit?

Sponsored