unfortunately, you would need more than the cali ECU and harness, this is DIGI 2, the fuel rail harness would also be needed. but if its the whole cali DIGI 1 harness is should work fine, Digi 2 is batch fire injectors cali digi1 is sequential fire for best gas mileage, and it can run like stink, Matts 8v once upon a time was cali1 and ran great!, you could make a harness for the injectors but would have to know which pin was each injector. a simple ecu pinout would work a treat. I say strip every wire from the firewall forward, its too hacked to guess anymore, have him reach in his pocket a little deeper, get a head gasket kit, and tune up parts, refresh this pig and put in donor harnesses. wire up a simple thermo switch fan setup or original and be done. Teach him how to do this right too, so he can follow suit later.
