I recently had an injector go bad (OL) causing dead skip. I replaced it with a new one and then car developed a very loud popping out exhaust while under load ex. boosting or load from shifting early. I figured it had to be something I did. I retraced my steps but found nothing. No vacuum leaks, no boost leaks, no codes. Then I got another dead skip from another injector gone OL so I figured it was an injector breaking up. I replaced all the injectors and the car started and ran beautifully smooth. I test drove it and same thing. Seems worse when warm and only under heavy load. Never at idle or revving it up. Thinking of checking timing next as I may have coincidentally developed a separate problem. If timing checks out any ideas? I am getting frustrated as the only way I know how to check for a cylinder misfire is with an oscilloscope on each coil individually and which I don't have. I had injectors out 5 times with no issues in the past. I know I properly installed them.
20:51:03 09/04/13
