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Author Topic: A4 B6 1.8T BFB Reading ECU flash memory failed  (Read 11314 times)
maxx888x
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« on: June 16, 2015, 08:41:20 AM »

Hi
I have cable on chip FT232RL and I am trying to read ecu my Audi A4 B6 motor code BFB 163HP
I get such information from the program:
Does someone can help me?
Code:
Connecting to address 0x01.
Slow init succeeded.
Switching to KWP2000 session.
Connected
Disabling Windows sleep mode.
Reading all ECU info.
Starting diagnostic session.
Unable to properly start diagnostic session, attempting to continue with current undefined session.
Negotiating communication timings.
Successfully changed to new communication timings.
0% complete.
20% complete.
40% complete.
60% complete.
80% complete.
100% complete.
Read 5 ECU info entries:
0x92, System Supplier ECU Hardware Number: 0261207934
0x94, System Supplier ECU Software Number: 1037366494
0x91, Vehicle Manufacturer ECU Hardware Number: 0x0D, 8E0909018A  , 0xFF
0x9B, Calibration Date: 8E0909518AA , 0004, 0x03002DB5, 0x32333637, 0x3838, 1.8L R4/5VT    ,     
0x9C, Calibration Equiment Software Number: 0x00000700
Restoring Windows sleep mode.
Disabling Windows sleep mode.
Reading ECU flash memory.
ECU reports programming session preconditions have been met.
Negotiating communication timings.
Successfully changed to new communication timings.
Requesting security access.
Security access granted.
Starting diagnostic session.
Successfully started diagnostic session.
Negotiating communication timings.
Successfully changed to new communication timings.
Requesting security access.
Security access granted.
Validating flash memory starts at 0x00800000 and ends at 0x00900000.
Validation failed, ECU reports RequestUpload was rejected. RequestUpload may have been disabled by aftermarket engine software.
Memory layout validation failed.
Starting to read data block.
Requesting upload from ECU for address range 0x00800000 to 0x0080FFFF.
Request upload from ECU failed, ECU reports RequestUpload was rejected. RequestUpload may have been disabled by aftermarket engine software.
Reading ECU flash memory failed. Trying to force ECU to recognize read operation is complete.
Finished forcing ECU to recognize that failed read operation is complete.
Reading ECU flash memory failed.
100% complete.
Restoring Windows sleep mode.
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tjwasiak
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« Reply #1 on: June 16, 2015, 09:29:11 AM »

Are you running stock tune?
Try reading in bootmode using Galetto for example.
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maxx888x
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« Reply #2 on: June 20, 2015, 01:39:43 PM »

when I try to read at Galletto, I get the message: "Change speed error"
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nyet
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« Reply #3 on: June 21, 2015, 01:18:11 AM »

Answer the question. Is the ECU stock or tuned?

You DID see this message, did you not?

"Validation failed, ECU reports RequestUpload was rejected. RequestUpload may have been disabled by aftermarket engine software."

If the ECU isn't stock, don't bother. Flash over it or get a spare ECU.
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eibxmatic
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« Reply #4 on: June 21, 2015, 03:50:30 AM »

Answer the question. Is the ECU stock or tuned?

You DID see this message, did you not?

"Validation failed, ECU reports RequestUpload was rejected. RequestUpload may have been disabled by aftermarket engine software."

If the ECU isn't stock, don't bother. Flash over it or get a spare ECU.
ive the same issue. my tune is not stock. is there any way to read the ecu anyway ?. like with a eprom programmer ?
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tjwasiak
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« Reply #5 on: June 21, 2015, 05:06:52 AM »

It had been written so many times I could not understand someone is still asking.
Yes you should be able to read your aftermarket tune even without desoldering flash from the ECU but most of the time it is just better to start from scratch as those tunes are of unknown quality and sometimes the changes made are really hard to understand (if you follow NefMoto guides you can destroy your engine).
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technic
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« Reply #6 on: June 21, 2015, 07:54:48 AM »

There are some important tweaks regarding fueling that needs to be done in BFB and BEX aswell
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eibxmatic
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« Reply #7 on: June 21, 2015, 06:42:08 PM »

It had been written so many times I could not understand someone is still asking.
Yes you should be able to read your aftermarket tune even without desoldering flash from the ECU but most of the time it is just better to start from scratch as those tunes are of unknown quality and sometimes the changes made are really hard to understand (if you follow NefMoto guides you can destroy your engine).
Haven't ran over the answer yet. Because of that I was asking. Yes it is not recommended to modify aftermarket. But my tune feels good and i think it is good for learning purposes to compare stock to aftermarket file with damos.
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tjwasiak
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« Reply #8 on: June 21, 2015, 07:03:21 PM »

And what do you expect to find? Modified 2 limiters?
All the knowledge what should be changed is already covered on this forum (including map locations for most popular ECU variants). To find how to change it you should log your own car as there are no 2 same engines in the world. In the beginning you adjust one parameter and log to check how does it all work together, if everything looks proper you move to next parameter and so on...
Many tunes just change 2-5 maps (and some of them are changed badly). I am quite sure you can work out tune better suited to your car on your own...

If you really have to read it, just read threads regarding reading/writing ECUs (especially those regarding bricked ECUs).
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Snow Trooper
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« Reply #9 on: June 22, 2015, 07:28:25 AM »

If you can't easily read it, chances are the maps are moved around also and no good to you.
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ddillenger
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« Reply #10 on: June 22, 2015, 11:29:24 AM »

Haven't ran over the answer yet. Because of that I was asking. Yes it is not recommended to modify aftermarket. But my tune feels good and i think it is good for learning purposes to compare stock to aftermarket file with damos.

This is the worst idea. If you're new enough to need examples, you're also new enough to not be able to differentiate good from bad.
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nyet
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« Reply #11 on: June 22, 2015, 11:32:01 AM »

When he said "Yes it is not recommended to modify aftermarket" I knew right away he didn't know why it wasn't recommended to modify aftermarket lol.
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ME7.1 tuning guide
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Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
eibxmatic
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« Reply #12 on: June 23, 2015, 03:10:14 AM »

When he said "Yes it is not recommended to modify aftermarket" I knew right away he didn't know why it wasn't recommended to modify aftermarket lol.

Because it is hard to reconstruct the changes are made which can result in damaging the engine. The only thing that is interesting for me on my aftermarket tune is. What changes are made at kfzw and lrdxn especially at 3000-4000. I've got very aggressive torque under wot in that region and I want to avoid that when building from scratch. Reading a tune you know how it is affecting your engine is in my opinion a good way to get a "feeling" for what you can expect in the street while you still sit behind your screen.
So why should I throw away the opportunity ?
Even after logging I see the tune can't be a bunch of crap. I've got a good up building boost and also almost no ignition retard on wot at 5500+rpm.

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tjwasiak
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« Reply #13 on: June 23, 2015, 06:37:23 AM »

The data you got in your logs should be sufficient to reconstruct what was done to the tune Cheesy

Most of the time "off-the-shelf" tunes have stock ignition advance maps, with LDRXN/ZK changed, sometimes minor changes to MIOP/MIRL (have seen some strange trickery done to them) and thats all most of the time.
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nyet
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« Reply #14 on: June 23, 2015, 10:20:26 PM »

The data you got in your logs should be sufficient to reconstruct what was done to the tune Cheesy

Most of the time "off-the-shelf" tunes have stock ignition advance maps, with LDRXN/ZK changed, sometimes minor changes to MIOP/MIRL (have seen some strange trickery done to them) and thats all most of the time.

Couldn't agree more on all points.
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ME7.1 tuning guide
ECUx Plot
ME7Sum checksum
Trim heatmap tool

Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
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