I HAVE THIS PROBLEM WITH MY GTA RIGHT NOW . FOR THE LAST SIX MONTHS I COULDNT FIGURE OUT WHY I HAVENT BEEN GETTING ANY INJECTOR PULSE. SO I CHECKED AND RECHECKED MY GROUNDS ,THEN I SAW ON ONE OF THE POST THAT IF THERE IS A VATS SYSTEM THEN THAT WILL NOT LET ECM TURN ON THE INJECTORS. I BOUGHT A 1989 GTA CAR NO ENGINE NO TRANNY, NO HARNESS. I THEN PURCHASED A 1987 IROC AND TOOK OUT THE ENGINE TRANNY AND WIRING HARNESS EVERYTHING DOES FUCTION EXCEPT INJECTOR PULSE . THE PREVIOUS OWNER DID SOME CRAPPY WIRING SO THE STARTER DOES CRANK . NOW MY QUESTION IS THE BLUE WIRE THAT IS SUPPOSED TO GO TO B6 AT ECM HOW WOULDGET THIS TO WORK AND CAN I STILL KEEP VATS AND IF NOT HOW WOULD I GO ABOUT GETTING RID OF IT