ME 3.8.3

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Giannis

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	Re: ME 3.8.3 « Reply #60 on: February 01, 2013, 03:13:48 PM »

As promised here are the pictures from ecu and program. It seems that one of the pins has a little something. I also have an older ecu with plcc44 chip inside. Can i use this instead so i can experiment on this one?


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pvl

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	Re: ME 3.8.3 « Reply #61 on: February 01, 2013, 06:32:33 PM »

Hi Giannis,

It looks like factory-soldering. Very even on each pin, except the pin you are referring too. That looks 'touched'.

The PLCC-ecu cannot be used for reflashing sadly. I would really suggest you keep the AR computer for testing and
tuning. As the flashing of it, only takes 3 mins +/-.

We better find-out why you cannot flash it... it shall be nothing really big. You have the V12 MPPS, like i also have.

What specs are your computer that you use for this job ? I use a P4 old compaq and a newer celeron acer laptop.
They both work without any flaws. Let's rule-out machine-compatibility first. A fresh install of Win7 or XP works best.
Plus no antivirus or spywarescanners on, please. They can interfere....

the 018AR is a audi-ecu... you can also choose A3 under audi and M5.92... 1.8T. That also works. It's basically the same
way of reading it out.

You can diagnose this ecu via vagcom without any problems, right Huh

ifnot, you might be having other issues with this ecu Wink

Cheers,

PvL


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ddillenger

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	Re: ME 3.8.3 « Reply #62 on: February 01, 2013, 06:35:42 PM »

What pvl said. I always connect with vcds if I have any issues flashing.


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Giannis

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	Re: ME 3.8.3 « Reply #63 on: February 01, 2013, 06:46:28 PM »

The weird think is that it's working great and on the car and with vcds. I was asking about the "older" ecu to use if they are compatible to use in this car. So i dont have to immobilize the car and have time to experiment on this. I know that it can't be reflashed. I think i'm gonna desolder the 29f200 and try to write on external programmer. Maybe there is something wrong with the chip. I think the black spot on that leg is not irrelevent. As you all testify none of you don't have any problems with those ecus. By the way the antivirus never got me any troubles why to do now? I really appriciate the help from all.


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Giannis

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	Re: ME 3.8.3 « Reply #64 on: February 01, 2013, 06:50:26 PM »

And a last question the flash memory it uses is a b58755m (29f200b) can i use a am29f20bb?


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pvl

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	Re: ME 3.8.3 « Reply #65 on: February 01, 2013, 06:52:24 PM »

Desolder the chip, get a meritek socket and reprogram the chip in a eprom programmer.....
If the chip won't reprogram in the programmer... you found your issue Wink

You can in the meantime also try another, clean and freshly installed win7-32bit laptop/pc
and try to do a benchflash. Use the pins on the ecu like i did with my benchflash-loom.
In-car 90% gives trouble...

Best of luck !

Cheers,

PvL


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Giannis

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	Re: ME 3.8.3 « Reply #66 on: February 01, 2013, 07:00:22 PM »

thank you i was thinking the same. If the programmer can't write it so its the chip. I wouldn't like to format my pc for that reason and don't have a clean pc at the moment. I prefer the programmer. Thank you anyway i will post the results.


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pvl

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	Re: ME 3.8.3 « Reply #67 on: February 01, 2013, 07:00:42 PM »

thats my flashrom...


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Giannis

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	Re: ME 3.8.3 « Reply #68 on: February 01, 2013, 07:08:14 PM »

so the flash is different than mine.


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pvl

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	Re: ME 3.8.3 « Reply #69 on: February 01, 2013, 07:16:32 PM »

the picture is from a VW Golf4 1.8T 06A906018CG 0261206518 1037358163


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eliotroyano

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	Re: ME 3.8.3 « Reply #70 on: February 19, 2013, 08:04:28 PM »

Friends AMD 29F200 flash memories have the following specs 2 Megabit (256 K x 8-Bit/128 K x 16-Bit) CMOS 5.0 Volt-only, Boot Sector Flash Memory.

And it part number or codes are:
AM29F200vw-xy where
v --> means A (0.5um technology) or B (0.32um technology) --> interchangable
w--> means T (top) or B (bottom) boot code sector architecture --> NOT INTERCHANGABLE
x--> means speed option with 55,70,90,120 & 150ns speed access --> USE THE SAME SPEED OR AT LEAST A FASTER ONE TO AVOID ISSUES
y--> other codes.

Then basically you can not take the first 29F200 that you find and put it on. Other think, these flash memories uses parallel type write/read procedures in other words different than newer processors and other microcontrollers that can be written using few pins, this flash eeproms needs that all it pins be soldered in place, because if not it will not work. I know by experience.

If you have a b58755m (29f200b) you can use a am29f20bb - 90ns or faster. Mines are 90 and 70ns. Also all the flash eeproms that I have seen in the M383 & M592 ecus are "B" bottom boot code sector architecture, then it could be 29F200AB or 29F200BB, both are interchangable.

Just my two cents to clarify the flash eeprom change doubts.


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Giannis

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	Re: ME 3.8.3 « Reply #71 on: February 20, 2013, 12:08:57 PM »

Thanks so much for this i was searching for some time now for that info. I am experiencing problems with a m3.83 i ordered a 29f200bb 70ns by luck as showed now. I am trying to solve a flashing problem i have with this ecu. I will report the results as soon as i receive the chip and start the testing. Thanks again.


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Giannis

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	Re: ME 3.8.3 « Reply #72 on: February 28, 2013, 01:30:47 PM »

Ok time to post update to my problem changed the flash memory now works fine. Flashing time is about 3mins. Thank you so much for your help.


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pvl

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	Re: ME 3.8.3 « Reply #73 on: February 28, 2013, 01:51:25 PM »

Great that you solved the issue !
Thanks for the feedback.

Good to hear that it now works.

Cheers,

PvL


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Dobermann

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	Re: ME 3.8.3 « Reply #74 on: April 27, 2013, 11:41:55 PM »

Hello Friends,

i need a little bit support !!

i have here a Bosch M3.83 Ecu with er Am29F200BB Chip !

I use Original MPPS V16 Version

i want to bench flash the ecu !! i dont know maybe i do something wrong or i forgott something

I have the Pic that someone postet with the pin connetions to ecu

Pin 1 = +12V

Pin 2 = Ground (-12V)

Pin 3 = +12V

Pin 43 = +12V

Pin 19 = K line

so i have the MPPS OBD Connector

i have to connect pin 16 to +12V than pin 4 and 5 to ground and pin 7 Kline

that musst be enouth to flash the ecu or im wrong ??

thanks for answer !!

BR


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