Yup, see my response to another member:
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7
BMS VW GTI JB4 info thread
- Thread starter George Smooth
- Start date
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vwinva
Ready to race!
- Location
- Arlington, VA
I have a 2017, but the person I responded to has a 2019. I had that rough idle ever since I started using map 6 a year ago. I believe I installed 2 firmware updates after switching to map 6, though my last update was in October 2018 -- v60/7//5.
I don't believe George has commented on the matter. I could be wrong, though.
Just to note, I don't have a JB4 anymore, so I can't comment on recent feel or updates
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vwinva
Ready to race!
- Location
- Arlington, VA
Thanks for the info. I will reach out to George. 2 2019s with the same issue makes me think something is up with the new ecu’s when using the JB4.
HappyLegs
Passed Driver's Ed
- Location
- Massachusetts
6MT or DSG? Any issues with stalling?
https://www.golfmk7.com/forums/showthread.php?t=51247
I haven't installed the JB4 in my 2019 yet... I'm waiting to install until after I sort through my 6MT stalling issue. My car has always had a rough idle.
What about the other non-Golf VW groups, like Group 4 (still EA888, but GLI/Jetta/Passat)?
I purchased a used JB4, and only just now realized that it is, quite likely, Group 4. Is it safe to use with my GTI? Plugs all look the same, I think..?
vwinva
Ready to race!
- Location
- Arlington, VA
DSG and zero stalling issues. Closing in to 2k miles.
My idle is solid as far as rpms go but after installing the JB4 there is this misfire type feeling you can feel every few seconds but this whole time the rpm is perfectly stable.
If you're sure that it's Group 4, it might not work: https://www.golfmk7.com/forums/showpost.php?p=724559&postcount=5
If I were you, I'd contact George to see if there's a way to determine if the device is a Group 4 unit and if it really will not work well with your car.
Edit: I updated my previous post that you quoted. Unfortunately, more groups have been added. Back then, there were only the first 3 groups.
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HappyLegs
Passed Driver's Ed
- Location
- Massachusetts
Mine is the same... RPM's steady but I can feel the rough idle in pedal and wheel.
tcabrino
Passed Driver's Ed
- Location
- Indiana, USA
- Car(s)
- MK7.5 Rabbit
I have my JB4 from my 16 GTI waiting to be installed in my Rabbit. I'm having stalling issues so waiting on that to be fixed before installing. I believe this might be what is causing in yours. I have some RPM fluctuation stock.
vwinva
Ready to race!
- Location
- Arlington, VA
Please re-read my posts. I have NO stalling issues and NO rpm fluctuations at idle with or without the JB4.
El_bigote_AJ
Autocross Champion
- Location
- Las Vegas
- Car(s)
- 2019 GTI bunny
I've got a 2019 rabbit as well and it has randomly stalled when in neutral and stopping for a light or sitting at a light when it was under 1000 miles (2 times). I've since put about seven hundred miles on it with the jb4 and it happened once on map 1 in the beginning but that's it, never on map 2 or now map 6.
I will say I have the same idle feeling but that was there before the jb4 also - its just more noticeable now, I have a 2013 gli on APR stage 1 also, so I just figured the newer 2.0s maybe just has that type of idle.
There are 4 connectors inside the engine bay and one connector inside the car. The most difficult connector to get to will be the charge pipe connector. Follow this install guide in reverse.
http://www.burgertuning.com/instructions/S1_VAG_EA888_G3.pdf
burgerkong
Drag Racing Champion
- Location
- Ontario, Canadeh
OT alert!
Girls and boys, just wondering if any of you would like some no-tap AFR harness adapters, have some that will be ready in the coming weeks below! PM me
https://www.golfmk7.com/forums/showthread.php?t=51718
Girls and boys, just wondering if any of you would like some no-tap AFR harness adapters, have some that will be ready in the coming weeks below! PM me
https://www.golfmk7.com/forums/showthread.php?t=51718