NefMoto > Technical > Flashing and Chipping > Checksum Error lockout with MTX tunerpro plugin.
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Author Topic: Checksum Error lockout with MTX tunerpro plugin.  (Read 16557 times)
SB_GLI
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« on: May 11, 2014, 06:10:47 PM »
I've been using the MTXElectronics checksum corrector plugin for tunerpro. 

ME7Check fails on my files with:

RSA signature failure found
-> Found 1 error!!!   *******************************

rsa: signature too large for modulus

Today, halfway through an auto-x event, my car wouldn't start.  I scanned it with vag-com and got:

16985 - Internal Control Module
            P0601 - 35-00 - Memory Check Sum Error

I've been running this flash for almost two weeks now and it took that long, even as a daily driver, to finally lock me out.  Luckily I had my other ecu with me, so it was no big deal.  This is the second time this has happened now.  the first time I thought it was a fluke.  So I guess this checksum plugin won't work for me, or am I doing something wrong?  Any others have this issue?  Gotta bootmode eeprom flash this ecu back to life again.. Sad
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sweegie
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« Reply #1 on: May 12, 2014, 05:03:08 AM »
Hmm.. Interesting....

What ECU and software are you using here? What maximum load are you hitting in your tune?
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ta79pr
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« Reply #2 on: May 12, 2014, 07:07:08 AM »
Could it be an actual checksum validation issue, meaning bad memory hardware, or the car got shocked or something else to trigger the fault. I mean the point of the checksum is to validate the coding that flies back and forh throught the memory/processor to catch problems.
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02 TT tdi (BEW)
2005 allroad 2.7tM (BEL)
SB_GLI
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« Reply #3 on: May 12, 2014, 07:44:16 AM »
Quote from: sweegie on May 12, 2014, 05:03:08 AM
Hmm.. Interesting....

What ECU and software are you using here? What maximum load are you hitting in your tune?

032PL software, I'll have to look at home what ecu I am using, but it's from an 04 passat.  190ish for max load.

Edit:  it's not from a 04 passat, it's from a MKIV.  032HF.
« Last Edit: May 14, 2014, 02:15:18 PM by SB_GLI » Logged
SB_GLI
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« Reply #4 on: May 14, 2014, 05:12:53 AM »
Any more ideas on this?  It's kinda hampering my tuning efforts as I don't want to be driving around a car that might randomly not start for me.   Huh
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stuklr
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« Reply #5 on: May 14, 2014, 09:41:06 AM »
I just had this happen with my 04 passat with the DQ ecu. I sent an email to MTX with a copy of my bin. The checksum plugin says its compatible, but maybe theres something it misses.
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ddillenger
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« Reply #6 on: May 14, 2014, 09:50:34 AM »
I hate to say it, but the ONLY reliable checksum software is ecufix by Andy Whitaker. Even winOLS has this problem with custom code Sad
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nyet
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« Reply #7 on: May 14, 2014, 09:53:09 AM »
Quote from: ddillenger on May 14, 2014, 09:50:34 AM
I hate to say it, but the ONLY reliable checksum software is ecufix by Andy Whitaker. Even winOLS has this problem with custom code Sad

ECUFix has issues too...
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ME7.1 tuning guide (READ FIRST)
ECUx Plot
ME7Sum checksum checker/corrrector for ME7.x

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 experience.
userpike
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« Reply #8 on: May 14, 2014, 10:07:00 AM »
Quote from: ddillenger on May 14, 2014, 09:50:34 AM
I hate to say it, but the ONLY reliable checksum software is ecufix by Andy Whitaker. Even winOLS has this problem with custom code Sad

what custom code?
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_nameless
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« Reply #9 on: May 14, 2014, 10:09:19 AM »
Quote from: SB_GLI on May 12, 2014, 07:44:16 AM
032PL software, I'll have to look at home what ecu I am using, but it's from an 04 passat.  190ish for max load.
so you are using mk4 software on your awm passat?!?...
i have had issues with ecu fix before in the past... i run threw ecu fix then load into winols and export to be safe
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_nameless
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« Reply #10 on: May 14, 2014, 10:09:58 AM »
Quote from: userpike on May 14, 2014, 10:07:00 AM
what custom code?
antilag / launch control
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ddillenger
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« Reply #11 on: May 14, 2014, 10:15:14 AM »
Quote from: userpike on May 14, 2014, 10:07:00 AM
what custom code?

Antilag, No lift shift, map switching, etc.
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SB_GLI
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« Reply #12 on: May 14, 2014, 11:12:36 AM »
Quote from: Marty on May 14, 2014, 10:09:19 AM
so you are using mk4 software on your awm passat?!?...
i have had issues with ecu fix before in the past... i run threw ecu fix then load into winols and export to be safe

no, I am using PL software on my MKIV jetta on an HL?HF? ecu out of a passat.  If that's not compatible, I blame double d.  Wink
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SB_GLI
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« Reply #13 on: May 14, 2014, 11:13:58 AM »
Quote from: stuklr on May 14, 2014, 09:41:06 AM
I just had this happen with my 04 passat with the DQ ecu. I sent an email to MTX with a copy of my bin. The checksum plugin says its compatible, but maybe theres something it misses.

I think I'll do the same.
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_nameless
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« Reply #14 on: May 14, 2014, 12:13:47 PM »
Quote from: SB_GLI on May 14, 2014, 11:12:36 AM
no, I am using PL software on my MKIV jetta on an HL?HF? ecu out of a passat.  If that's not compatible, I blame double d.  Wink
I have used early model awm ecus with mk4 software w/o any issue but I know that they changed in 03ish? Not sure exactly when but I know they did
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