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obiwanshinobi87 obiwanshinobi87 is offline
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Default Questions about JB4 installation and usage - 02-23-2017, 10:56 AM

Hi, I installed my new JB4 and Bluetooth kit today, and I have some questions concerning its usage.

I followed the installation guide, doing this:

1) Disconnected the battery. Removed the TMAP sensor, plugged the JB4 into it and the JB4 into the engine.

2) Removed MAP sensor, plugged the JB4 into it and the factory harness.

3) Ignored the OBDII and CANbus wires because the Bluetooth makes them redundant...right?

4) Installed the Bluetooth kit into the JB4, plugged the red wire into the JB4's red wire. Reconnected the battery.

Here's my problem. When I connect the app and select Map1, everything is fine, but when I actually run the engine and drive, the logging and dials show no engine activity, even though I'm driving and everything seems to be operating normally. Also, I'm not sure if I feel a difference in the performance, so I'm not entirely sure if the JB4 is actually working or not. Advice?

Here are some logs:

https://drive.google.com/open?id=0B8...3BRRkhGajhWR28
https://drive.google.com/open?id=0B8...UVnZi00UWpfSnc

Thanks!
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KevinC39 KevinC39 is offline
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Default 02-23-2017, 11:48 AM

I'm not sure if the F series stuff is the same as mine but I think you need those canbus wires. Do the instructions tell you not to use them?
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Mike_L Mike_L is offline
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Default 02-23-2017, 12:38 PM

You absolutely need the OBD2 connected. The bluetooth is basically just for logging. The CanBus/OBD2 needs to be used.


Mike Levy
2021 Tanzanite Blue II M550i xDrive
2018 Silver Equinox LT 2.0T
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obiwanshinobi87 obiwanshinobi87 is offline
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Default 02-23-2017, 02:14 PM

Quote:
Originally Posted by Mike_L
You absolutely need the OBD2 connected. The bluetooth is basically just for logging. The CanBus/OBD2 needs to be used.
Ok so that's the reason why the JB4 wasn't detecting engine rpm? Have I been just driving around with a JB4 that wasn't doing anything?
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Mike_L Mike_L is offline
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Default 02-23-2017, 05:09 PM

It was pretty much running on Map 1. Thats what it does with no CanBus signal.


Mike Levy
2021 Tanzanite Blue II M550i xDrive
2018 Silver Equinox LT 2.0T
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KevinC39 KevinC39 is offline
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Default 02-23-2017, 07:02 PM

I would think you didn't have any steering wheel controls or gauge hijacking either
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