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ABC123 ABC123 is offline
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Default transmission malfunction fix with xhp - 06-18-2019, 08:54 AM

Car- 09 335xi coupe
So I went fbo within the last few weeks with jb4 and mhd backend so I decided to install xhp the backup went fine went to do stage 3 halfway threw it disconnected somehow and bricked the trans so I did the emergency flash went fine followed instructions had to go to work so I was gonna try again the next day next day started my car drove away got a half block before the transmission malfunction came back on parked it now won't go into gear at all tryed the emergency flash again but Everytime I start the car the park symbol disappears and transmission malfunction light comes up and the car won't go into gear I had no issues with my trans before any help on how to fix this would be more than appreciated
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Tay335LCI Tay335LCI is offline
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Default 06-18-2019, 11:18 AM

Uninstall JB4 and do your trans flash over
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Default 06-18-2019, 11:53 AM

Quote:
Originally Posted by ABC123
Car- 09 335xi coupe
So I went fbo within the last few weeks with jb4 and mhd backend so I decided to install xhp the backup went fine went to do stage 3 halfway threw it disconnected somehow and bricked the trans so I did the emergency flash went fine followed instructions had to go to work so I was gonna try again the next day next day started my car drove away got a half block before the transmission malfunction came back on parked it now won't go into gear at all tryed the emergency flash again but Everytime I start the car the park symbol disappears and transmission malfunction light comes up and the car won't go into gear I had no issues with my trans before any help on how to fix this would be more than appreciated
JB4 set to 0?

Set jb4 to zero & try to reflash xHP



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Tay335LCI Tay335LCI is offline
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Default 06-18-2019, 12:11 PM

Quote:
Originally Posted by Dave @ BMS/Fuel-It!
JB4 set to 0?

Set jb4 to zero & try to reflash xHP
Na man,That doesnt work, I know from first hand and XHP themselves even confirmed that a longgg time ago, jb4 has to be unplugged
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ABC123 ABC123 is offline
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Default 06-18-2019, 02:46 PM

I will try to unplug the jb4 and try again. Should I also uninstall the mhd or just flash to map 0
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Tay335LCI Tay335LCI is offline
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Default 06-18-2019, 02:51 PM

Quote:
Originally Posted by ABC123
I will try to unplug the jb4 and try again. Should I also uninstall the mhd or just flash to map 0
You dont have to , just unplug the jb4
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ABC123 ABC123 is offline
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Default 06-18-2019, 03:44 PM

Will the install of the jb4 get messed up because the xhp is on
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Default 06-18-2019, 04:12 PM

Quote:
Originally Posted by ABC123
Will the install of the jb4 get messed up because the xhp is on
Lol no, I have it on my car , its just something in the jb4 that blocks the communication for the flash with the jb4 installed
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ABC123 ABC123 is offline
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Default 06-18-2019, 05:20 PM

Lol alright figured I fd my tcm probably what was contributing to the rough idle after the flash to
Thank you for you're help I'll try this in the morning
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Default 06-18-2019, 05:25 PM

Quote:
Originally Posted by ABC123
Lol alright figured I fd my tcm probably what was contributing to the rough idle after the flash to
Thank you for you're help I'll try this in the morning

Lmaoooo exact thing that happenrf to me, idle was fkd 😂
And no problem
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Default 06-19-2019, 12:26 AM

Odd I’ve flashed multiple xhp revisions with my jb4 installed with pure turbos and their single turbo flashes never an issue- even when helping beta test xhp a while ago- interesting lol



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Default 06-22-2019, 09:35 AM

Ended up driving my pos backup all week til I had time to mess with this took out jb4 all together uninstalled mhd just in case did the emergency flash and went to reinstall still the same thing when the ignition is on can select gear fine start car and park disappears and can't select gears with tras malfunction and start off assistance lights only code that came up with xhp 511B0
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Default 06-22-2019, 09:36 AM

Before I installed xhp I did my valve cover gasket possible ground issue?
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Default 06-23-2019, 08:00 AM

Quote:
Originally Posted by ABC123
Ended up driving my pos backup all week til I had time to mess with this took out jb4 all together uninstalled mhd just in case did the emergency flash and went to reinstall still the same thing when the ignition is on can select gear fine start car and park disappears and can't select gears with tras malfunction and start off assistance lights only code that came up with xhp 511B0
Really odd... any insight from xhp ?



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Default 06-23-2019, 08:16 AM

Is anyone from xhp on here ?
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Default 06-23-2019, 10:22 AM

Quote:
Originally Posted by Dave @ BMS/Fuel-It!
Odd Iíve flashed multiple xhp revisions with my jb4 installed with pure turbos and their single turbo flashes never an issue- even when helping beta test xhp a while ago- interesting lol
Same here. Never set it to 0 either. It does it on its own when you plug something into the OBDII.
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Default 06-23-2019, 10:26 AM

Quote:
Originally Posted by THE BEAST
Same here. Never set it to 0 either. It does it on its own when you plug something into the OBDII.
Honestly don't even care about the flash anymore just want my car to move I tried to email xhp will see nothing I do seems to work
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Default 06-23-2019, 03:36 PM

Quote:
Originally Posted by ABC123
Honestly don't even care about the flash anymore just want my car to move I tried to email xhp will see nothing I do seems to work
Is the emergency flash completing?

Iím assuming your connected to a battery charger or some sort during charge?



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ABC123 ABC123 is offline
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Default 06-23-2019, 04:10 PM

Yes charger was connected even after emergency flash can only move shifter when engine is off
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