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Author Topic: Checksum Error lockout with MTX tunerpro plugin.  (Read 17539 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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SB_GLI
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« Reply #3 on: May 12, 2014, 07:44:16 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 »

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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userpike
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« Reply #8 on: May 14, 2014, 10:07:00 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 »

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 »

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 »

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 »

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 »

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 »

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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Giving your mom a tuneup
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