Well I was gonna sit down tonight and chip my PR3 and i've run into a few things that I didn't expect. First off there is a daughter board in here that I wasn't expecting. and second the main board doesnt' look like any of the pics I've seen or turned up in my searches. Any one know what i'm missing here?


Modified by markviiisvt4 at 7:26 PM 9/26/2007

 

bump

 

post up some pictures, that will help the discussion.

 

dude, do you have d long jdm pr3 ecu? if you can post me a pic of it i might be able to help you. i think you have the jdm pr3 box, if you do. that would be a p30 with a pr3 mark on it ..

 

got a few pics of it tonight hopefully some one can help me

 

thats the right one!.. obd0 pr3. to chip it, all u have to do is desolder the existing ic ,the 28 pin wid a number of m38256ap. be carefull not to burn the main board ok. dat all you have to do

 

awsome thats what i thought but i wasn't sure. Also the letters AT are printed in a few places on the board and written in paint marker on the case. If this is an auto trans ecm how do i disable it?

 

dont worry about the at thing.. it has its own comp.box seperately for the tranny. only the obd 0 have that.it wnt harm you.. good luck, have fun!

 

You've got to convert it too MT for BRE to work right(which is really your only tuning option). Its really easy, all you have to do is move R68 to R67. http://web.archive.org/web/200...anual

And that daughter board is for the knock sensor.

 

awesom guys thanks for all the info. I've been tryingto become a member of PGMFI.org, but i haven't got my conformation e mail yet.

 

should i just do my self a favor and convert this thing to OBD1 and call it a day?