Read ecu using Nefmoto, car wont start. 2000 S4

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Topic: Read ecu using Nefmoto, car wont start. 2000 S4 (Read 5621 times)

Imolla

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	Read ecu using Nefmoto, car wont start. 2000 S4 « on: February 01, 2015, 12:20:41 PM »

Hi guys,

I successfully read the ecu using a blue ebay cable and nefmoto, now the car wont start.

Things we tried:

-Flashing the file back on the ecu, was successful, still no start.
-Checksum came back OK

Car illuminates the cluster lights when turned to ON position, door lock pump cycles, but it wont roll over starter. Also if it matters the radio wont turn on either.

What are my next steps? Any help would be appreciated.


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terminator

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	Re: Read ecu using Nefmoto, car wont start. 2000 S4 « Reply #1 on: February 01, 2015, 12:47:14 PM »

Any DTCs?


« Last Edit: February 01, 2015, 12:53:30 PM by terminator »	Logged

turboat

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	Re: Read ecu using Nefmoto, car wont start. 2000 S4 « Reply #2 on: February 01, 2015, 01:19:23 PM »

Write the bin that you read back to the car. This is documented on here


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vwaudiguy

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	Re: Read ecu using Nefmoto, car wont start. 2000 S4 « Reply #3 on: February 01, 2015, 01:52:47 PM »

Car won't crank, or won't start?


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"If you have a chinese turbo, that you are worried is going to blow up when you floor it, then LOL."

turboat

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	Re: Read ecu using Nefmoto, car wont start. 2000 S4 « Reply #4 on: February 01, 2015, 03:59:33 PM »

Just re-read this, are you sure your battery is healthy?


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Imolla

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	Re: Read ecu using Nefmoto, car wont start. 2000 S4 « Reply #5 on: February 01, 2015, 05:40:43 PM »

Quote from: turboat on February 01, 2015, 03:59:33 PM

Just re-read this, are you sure your battery is healthy?

nailed it, turns out the battery died. Cars alive again.

Any reason i shouldnt flash while charging the battery? Im concerned about it dying mid flash now.


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ddillenger

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	Re: Read ecu using Nefmoto, car wont start. 2000 S4 « Reply #6 on: February 01, 2015, 05:54:35 PM »

You can flash with the car charging, in fact it's advised.


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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 experience!

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Imolla

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	Re: Read ecu using Nefmoto, car wont start. 2000 S4 « Reply #7 on: February 01, 2015, 08:24:04 PM »

I really appreciate how responsive and helpful this forum is. You guys rock.

So i've been reading like crazy. Im attempting to get my 2000 b5 S4 manual to pass etest. Car has miltek catted downpipes and 4x new'ish 02 sensors. Ive had cat efficiency codes since i installed the downpipes. I also have bum egt sensors. Currently ive tried setting TABGSS(S) to 1229, so far no cell, but faults still show in vagcom.

As far as i understand, the best route is to flash my Abox to mbox coding so i can properly manipulate the secondary O2 coding.

This means recoding the mbox hitachi maf tables to my bosche maf and something about esp and the cluster?

Should i buy a hitachi maf? Any advantage?

Are there open source stage 2 tunes out there?

Thanks in advance. Oh and if this is in the wrong forum pls move.


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ddillenger

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	Re: Read ecu using Nefmoto, car wont start. 2000 S4 « Reply #8 on: February 01, 2015, 08:30:13 PM »

We moved away from the generic posted tunes, instead opting to work on community projects.

As for the MAF, neither is better/worse. To use the M-box all you have to do is change CW_CAN_R to 0, and copy MLHFM/MLOFS/KFKHFM from the A-box. No recoding of the cluster required, or recommended.

As for your o2 codes, I suggest reading the wiki:

http://s4wiki.com/wiki/Tuning

All you need is CDKAT, CWDLSAHK, and CLRHK. Alternatively you can use AHKATMX, AHKATS, and AHKATSB in conjunction with CLRHK, but that's more advanced.

Welcome, and good luck


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