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      08-05-2020, 04:05 AM   #1
osaravoo
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How to remove JB4 Back End Flash

Good evening guys

I have been fortunate enough to have had Jin Zhou help me out on the Facebook group with an issue that I have recently come into. Following the thread, it is evident that the problem is being caused by the JB4 back end flash that I applied to the car (I also used MHD to apply a stage 2+ map).

The question I have is simple: do I need to do anything to reverse the JB4 backend flash or will pulling it out if the ECU be enough to remove it (and hopefully the check engine light that came with it).

My thanks in advance
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      08-05-2020, 04:08 AM   #2
Brule
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????

An ecu just has a heap of spreadsheets pretty much.

Are you talking about the dmtl error?
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      08-05-2020, 04:21 AM   #3
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Quote:
Originally Posted by osaravoo View Post
Good evening guys

I have been fortunate enough to have had Jin Zhou help me out on the Facebook group with an issue that I have recently come into. Following the thread, it is evident that the problem is being caused by the JB4 back end flash that I applied to the car (I also used MHD to apply a stage 2+ map).

The question I have is simple: do I need to do anything to reverse the JB4 backend flash or will pulling it out if the ECU be enough to remove it (and hopefully the check engine light that came with it).

My thanks in advance
Just flash back to stock and then remove
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      08-05-2020, 04:26 AM   #4
Brule
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No need for jb4 unless you have port injection in my limited experience. (eff. you see kay jb4)
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      08-05-2020, 04:40 AM   #5
osaravoo
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Quote:
Originally Posted by Socket View Post
Just flash back to stock and then remove
That is so logical that I am embarrassed that I didn't think of it mayself.

Thanks Socket!
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      08-05-2020, 04:42 AM   #6
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Quote:
Originally Posted by Brule View Post
No need for jb4 unless you have port injection in my limited experience. (eff. you see kay jb4)
Hey Brule

Yup, DMTL error is my post and I am beginning to see the wisdom of pulling the Jb4 out completely and running MHD on it's own.
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      08-05-2020, 04:58 AM   #7
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You can remove the dmtl error in tuner pro.
Takes 2 minutes.

If you dont want to get into it to much mhd off the shelf tunes are pretty popular.
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      08-05-2020, 05:32 AM   #8
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Quote:
Originally Posted by Brule View Post
You can remove the dmtl error in tuner pro.
Takes 2 minutes.

If you dont want to get into it to much mhd off the shelf tunes are pretty popular.
Awesome, thanks for the heads up Brule. I will probably need to find someone who knows what they are doing re: Tuner Pro but I'll look into it!

Thanks again
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      08-05-2020, 07:09 AM   #9
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Originally Posted by osaravoo View Post
That is so logical that I am embarrassed that I didn't think of it mayself.

Thanks Socket!
No worries that's what we are here for
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      08-05-2020, 07:48 AM   #10
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Quote:
Originally Posted by osaravoo View Post
Quote:
Originally Posted by Brule View Post
You can remove the dmtl error in tuner pro.
Takes 2 minutes.

If you dont want to get into it to much mhd off the shelf tunes are pretty popular.
Awesome, thanks for the heads up Brule. I will probably need to find someone who knows what they are doing re: Tuner Pro but I'll look into it!

Thanks again
to do that you need tuner pro
This is for ikmos rom types but others can post theirs
Open XDF, select (don't open) the last table in the table list, click XDF in menu bar, create new XDF parameter, table.

Title: DMTL config
Address: 0x4c7d9
Cell data size: 8 bit
Decimal places: 0

That parameter will now appear in your XDF
Open Bin
Select your bin
change the DMTL parameter to 0
save.
Flash that bin to your car again as a custom file.
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      10-28-2020, 06:05 AM   #11
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Thanks for the response Aus335iguy, alas I don't trust myself with any kind of coding!

You wouldn't happen to know someone in Canberra that knows their way around Tuner Pro?
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      10-28-2020, 07:02 AM   #12
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Sorry to Hijack. I am keeping my jb4 although i have an mhd flash for two reasons unless someone can pursuade me otherwise:
1. For the jb4 gauges on my android head unit. Connects via USB so no need to connect to obdc.
2. I purchased the anti-lag kit and am planning on installing it on the jb4 someday.

I'll admit that i bought the mhd after the jb4 for the throttle off gurgle.
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      11-01-2020, 09:34 AM   #13
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Edited my previous post for Ikmos rom types only
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      11-01-2020, 09:37 AM   #14
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Originally Posted by Aussieatlarge View Post
Sorry to Hijack. I am keeping my jb4 although i have an mhd flash for two reasons unless someone can pursuade me otherwise:
1. For the jb4 gauges on my android head unit. Connects via USB so no need to connect to obdc.
2. I purchased the anti-lag kit and am planning on installing it on the jb4 someday.

I'll admit that i bought the mhd after the jb4 for the throttle off gurgle.
Each to their own mate !
JB4 have some features that people like.
Personally I found they can cause issues from time to time and don't recommend them. If it's working for you, great.
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