I finally got my hands onto a wrx4+ link ecu, to put in a 1998 v4 sti Type R (all stock components aside catless DP).
I tried to setup an excel file to see where I am at regarding the wiring. For the harness pinout I based myself on the following pictures:
Then I used the Help file of PC link to get the ones of the ECU.
I have the following questions (Excel file attached):
-why are there aux, aux-inj, aux-ign outputs. what are the technical differences between these?
-It looks like the list doesn't include grounds and +5v's, are they the same as stock ecu? (sensor ground, shield ground, ign ground, inj ground, maf ground, tps...)
-It seems like that in the pin function list I am missing the crank and cam position sensor, are they present?
-the pin function list shows An volt 1 for the map sensor, but nothing is lining up to it, and I can't even find the number on the stock ecu. Any idea on that?
-why is there 2 times ignition #1 and #2 (ecu pin 4&5 and 17&18)? is that the same output twice or is it really 4 independent ignition outputs to run full sequential ignition?
-what is the "Pressure source switching solenoid valve" of the stock wiring harness?
Have a nice day!