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Author Topic: HELP!! First read, car won't start afer  (Read 2816 times)
thelastleroy
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« on: August 18, 2014, 05:56:35 PM »

I had some trouble reading my car, tried to read with a few different memory layouts. Finally I realized that the baud rate had to be readjusted down to read. I got a full sucessful read which I am posting here, with the 29F800BB layout.

The car wont start now, what should I try next? I could really use some help on this.
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Marty
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« Reply #1 on: August 18, 2014, 05:59:42 PM »

Is the ecu still live? can you connect to it with vcds or nefmoto software? if so flash your read back if not live you bricked it
good luck
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thelastleroy
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« Reply #2 on: August 18, 2014, 06:03:58 PM »

Yes, I can connect to it again. I'll go and try to reflash the file I just read.
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thelastleroy
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« Reply #3 on: August 18, 2014, 06:18:52 PM »

Genius! It's alive. Thank you for your quick reply and consideration for new-guy cludges. Now on to find an appropriate XDF. Thanks again
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Tony@NefMoto
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« Reply #4 on: August 18, 2014, 06:24:37 PM »

Could you post your log file so I can see what happened? I'm wondering if your ECU thinks that it needs to be reprogrammed because I asked it to validate it's checksum during the read.
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Marty
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« Reply #5 on: August 18, 2014, 06:26:14 PM »

glad your up and running, the ak is very well defined and you could use that to make your own xdf
good luck
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thelastleroy
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« Reply #6 on: August 18, 2014, 06:35:13 PM »

Could you post your log file so I can see what happened? I'm wondering if your ECU thinks that it needs to be reprogrammed because I asked it to validate it's checksum during the read.

Here's the log in a word file. (whoops, new file)
« Last Edit: August 18, 2014, 06:39:20 PM by thelastleroy » Logged
ddillenger
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« Reply #7 on: August 18, 2014, 06:39:59 PM »

Could you post your log file so I can see what happened? I'm wondering if your ECU thinks that it needs to be reprogrammed because I asked it to validate it's checksum during the read.

Hey Tony. This happens on the following flashes:

Allroad/A6:
4Z7907551S and 551A

MK4:
06A906032RN

B6:
8E0910518BC
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thelastleroy
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« Reply #8 on: August 18, 2014, 06:48:50 PM »

Hey Tony. This happens on the following flashes:

Allroad/A6:
4Z7907551S and 551A

MK4:
06A906032RN

B6:
8E0910518BC

Go figure. I get one of the oddballs. Where do I find this number for my car? Is it the "Vehicle Manufacturer ECU Hardware Number" or the "Calibration Date"?

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nyet
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« Reply #9 on: August 18, 2014, 09:37:27 PM »

http://nefariousmotorsports.com/forum/index.php?topic=981.0title=
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ME7.1 tuning guide (READ FIRST)
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TCSTigersClaw
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« Reply #10 on: August 19, 2014, 03:55:42 AM »

maybe stupid question but after READ did you click Disconnect ? I had an issue once....When you write it disconnects automatically , when you read it doesnt. I don`t know how this can effect the ECU  , when programming is complete
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Tony@NefMoto
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« Reply #11 on: August 19, 2014, 08:40:29 AM »

Thanks for posting the log file. Very strange that reading the ECU would cause this issue. Definitely something I want to fix because most users don't expect a read to cause the car to stop working.

Things I can think of that the NefMoto software does that could cause this:
-Not disconnecting after a read
-Doing checksum validations before reading each memory sector may cause the ECU to think it isn't properly programmed
-Not doing a checksum validation for the whole memory range when finished reading


It was also weird that you could only connect at 52800 baud. Other baud rates were rejected with a security access error. I wonder if it was the specific baud rate that worked, or if it was something to do with changing the baud rate and starting a new diagnostic session.
« Last Edit: August 19, 2014, 12:34:26 PM by Tony@NefMoto » Logged

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terminator
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« Reply #12 on: September 04, 2014, 03:02:55 PM »

Its very common problem with all flashers. I know nothing about KWP etc, but from my expirience its very important to turn ignition off even after identifying otherwise you will get "programming not finished".
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tommy88
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« Reply #13 on: September 24, 2014, 08:22:24 AM »

Hi,

i think i am having the same problem.
After reading the ECU i get these DTCs an the car wont start.
Can someone please check if the bin is correct so i can try to flash it like its said earlier in the thread.

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thelastleroy
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« Reply #14 on: September 27, 2014, 08:35:38 AM »

Is the ecu still live? can you connect to it with vcds or nefmoto software? if so flash your read back if not live you bricked it
good luck

Give it a go. Hope it works out!
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