R33 ECU sa da priamo preprogramovat, ale nejdna sa o vymenu eprom ale o preprogramovanie procesora, druha moznost je pouzitie pridavnej dosky ktora emuluje eprom a potom sa menia priamo eprom (ako napr. v s14).
Oboje vsak vyzaduje ovela vacsie upravy ako v pripade s13 ECU a obavam sa ze to stoji takmer tolko kolko nechces platit.
tento clovek robi preprogramovanie r33 ECU, mimochodom, je to v prvom odkaze co ti vyhodi google:
http://www.drdrift.com.au/contact.php
cena sa hybe okolo 600-700USD.
v pripade potreby, tu je navod na pouzitie Z32 ECU
advantage of the Z32 ECU is it will retain VTC on the R33 and the Z32 ECU has in/outputs left when used on the R33, which can be used for other purposes (only possible after extensive code modification though)
For one customer I reprogrammed a "Z32 ECU converted R33" to have the ECU switch water injection, have a map sensor instead of a MAF sensor and have the "check engine" light come on when detonation was detected.
When using a Z32 ECU you can basically use a stock Z32 binary and copy over the most important constants, maps and tables from the R33.
To get it perfect some parts of the code need to be modified, but with stock code it will already run 10 times better then when using a R32 ECU
>> Still to grab the exact wiring modifications required from him
for the RB25DE(T) based R33's these are the wiring modifications:
R33 pin 19 to Z32 pin 34
R33 pin 105 to Z32 pin 110
R33 pin 110 to Z32 pin 105
R33 pin 112 to Z32 pin 114
R33 pin 114 to Z32 pin 112
R33 pin 57: cut
Z32 pins 29+52 : join
Best is to use a FIELD harness extender, so you don't have to chop up the original wiring harness.
Because an unmodified Z32 ECU only has 1 detonation sensor input, you will have to choose which sensor you want to use.
if you leave pin 23 (r33) connected to pin 23 (Z32), it will monitor the sensor for cyl. 1-3
if you rather have it monitor the rear cylinders 4-6, you will have to cut pin 23 (r33) and connect pin 24 (R33) to pin 23 (Z32)
vela zabavy :-D
