Dead on 3 out of 4? That is not good...when I was running on 3 of 4 it was bad enough. If you sent the injectors out and they were tested as good....time to go back into the wiring and make sure your repairs didnt come apart. Another thing you can do is try the #4 injector on #s 1,2,3 and see if they fire that way. Then you will know for sure if its your injectors or wiring. When operating they make a very distinctive click when listened to with a mechanics stethascope. If they are not firing there will only be a dull sound as the other injectors (injector in your case) fire. PIA I know...but the problem has got to be right there under your nose...which are the hardest to figure out btw. Get back to us with your compression numbers. And if you dont have a stethascope...get one. They run about $4.

~Darin <img src="/forums/images/graemlins/baby.gif" alt="" />