NefMoto

Technical => NefMoto Software => Topic started by: thelastleroy on August 18, 2014, 05:56:35 PM



Title: HELP!! First read, car won't start afer
Post by: thelastleroy 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.


Title: Re: HELP!! First read, car won't start afer
Post by: _nameless 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


Title: Re: HELP!! First read, car won't start afer
Post by: thelastleroy 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.


Title: Re: HELP!! First read, car won't start afer
Post by: thelastleroy 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


Title: Re: HELP!! First read, car won't start afer
Post by: Tony@NefMoto 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.


Title: Re: HELP!! First read, car won't start afer
Post by: _nameless 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


Title: Re: HELP!! First read, car won't start afer
Post by: thelastleroy 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)


Title: Re: HELP!! First read, car won't start afer
Post by: ddillenger 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


Title: Re: HELP!! First read, car won't start afer
Post by: thelastleroy 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"?



Title: Re: HELP!! First read, car won't start afer
Post by: nyet on August 18, 2014, 09:37:27 PM
http://nefariousmotorsports.com/forum/index.php?topic=981.0title=


Title: Re: HELP!! First read, car won't start afer
Post by: TCSTigersClaw 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


Title: Re: HELP!! First read, car won't start afer
Post by: Tony@NefMoto 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.


Title: Re: HELP!! First read, car won't start afer
Post by: terminator 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".


Title: Re: HELP!! First read, car won't start afer
Post by: tommy88 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.



Title: Re: HELP!! First read, car won't start afer
Post by: thelastleroy 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!