So, i have been having some troubles with my original ECU (after flash with mpps) and a local tuner told me the prom (am29f400bt) was not functional, it had errors in memory or something ? and there would be some delivery time on a new one and so fourth.
Therefor i got off ebay a spare/donor ECU with same VW part number and bosch hardware number.
Then i desoldered 95040 from it, wrote a new file with immo off and some other mods to it, and solder back on.
The problem now is that it runs fine, but is VERY slow, slower than stock and the file written into it was not at all stock.
i have found out by connecting to it with MPPS, that the bosch software number is different from the original one.. is that what is causing the problem ? i have tried writing other .bins to it, but all of them runs the same when in car, no matter how they are tuned.
I have my original ECU also but it isn't functional, i also have a new am29f400bt but i would assume its "blank".
I've been told there could be some death code in the used ecu i got.. could this be removed so that it could run fine with modified .bin in 95040 ?
Not entirely sure how to go forward from here :wtf:
No DTC's when connected with VCDS.
Any suggestions are welcome, thanks