Have anybody tried to decode Superchip or Pectel chip for P8 ?
I am working on Pectel P8. It looks like adress 0, 1, 2, 3 repeat from adress 0710 to 0fff. D0,DO,D0,DO,,,,,, are changes to CF,53,57,E7,,,,, The map area are more difficult
Hi Some information on Pectel P8 coding. Adress 0,4,8,A have the coding formula. J have made a pascal program to copy this adress to a file. Now the hard work began. Some of then coding formula are known D0=CF, FF=3D, 00=C2. I thing D0 = CF makes 0 = C so if you have a data ending on 0, it will became C. It makes
0=C 8=D 1=4 9=5 2=E A=F 3=6 B=7 ------------------------ 4=8 C=9 5=0 D=1 6=A E=B 7=2 F=3 So to go from C to 4 you only turn off bit value 8. Now the value of D = F (D0 = CF) That ho far J have come.
Hi Yes I kind of gathered that, but why, was it for interest or where you trying to modify it.
All this kind of stuff was done 20+ Years ago and is available in some form, from several suppliers, even the boards, PAL's, chips etc.
I Was curious as to why you were going to such lengths, presume you know exactly what each Rom chip (M***T*NE ones)is and that they are only compatible with individual boards.
It is for interest AND for have a look of the dif of the map from the suppliers of Rom. The Map part are the same decoding formula for all the chips I have decoded. The dif. are the program. In your first post is looks like you want to assist ??????
The WOT is a multiplier at 89DO and is a 16 byte curve mapped against RPM, it is limited by U/L and Lower limits of throttle angle which are also 16 byte curves respectively at 89E0 and 89F0. Hope that helps
Yes we can. The Pectel decoding map program works. The Grautec coding board works the same as EVC olso from Germany, data pin 1 and 4 and 5 are twisted, use a multimeter to find out. The Adress pins are olso twisted, use a multimeter.
Hi The Grautec protection board from Germany is now solwed. There are 2 sorts of board one for L8 ( more protection ) and one for P8 ( les protection ) I will make a demo of the decoding program later.
First you have to make a program to make 4 files , one for adress 0,4,8,C, one for adress 1,5,9,D ...... Then you have to make a copy of a org.bin file, and a copy of a tun.bin file. ( Only the map part , start with CF,53,57,E7,CF,53,57,E7......... ) Now you have to make a program that will compare the org.bin 1 file with tun.bin 1 file .....
After that you can look for hex value 00 in the org.bin file and compare with tun bin.file (The adress have to match ).
Write it on paper look for hex 01 and 02 and ....... for all 4 files ( it takes time for Me 3 month. )
After that you can make a program that will do the job for you. I will NOT give away My program but I will help you . ( show me the progress when you begin )
Sorry to bump a thread, but is it possible to decode a p8 pectel encrypted chip? I’ve got a map on a p8 pectel board chip I run at the moment and I’d like to decode it so I can use this as a base map on a GEMs P8.
I know. I have 2 P8s. One GEMs one and one with a pectel board. I just wanted to put my pectel one back to standard to check that my loom was configured correctly (which it is) and the issues I have lie with the GEMs ecu - it’s not priming the pumps and pulsing the iscv (my P8 with pectel board/chip and also with a standard P8 chip in - it primes and pulses perfectly).
So thanks to Kim, I can definitely say it’s the GEMs ecu at fault.
Just for posterity in case anyone comes to the thread - the GEMS P8 ecu uses a replacement socket mounted MCU - Motorola MC68HC811E2FN and an additional ST Microelectronics VNP5N07 mounted to the ECU case/bar. There are a few other tweaks - such as a removed components, replaced resistors and a 3 pin plug.
Hello to all! I saw your conversation here and should like to ask you midnightman if you could also decode me a p8 pectel board chip in order to copy the maps and run that to an other p8 without board? Thanks!!!
Posting Permissions
Reply With Quote
Bookmarks