My car seems to miss a little at low rpm, (less with the new nozzles) like if I'm not getting full detonation in one cylinder. And also my idle jumps from 1100rpm to 800rpm and vice-versa (slowly goes up and stays there a while, then slowly backs down). I had this problem before I changed my nozzles. I did a compression test at the same time and that's good (430psi across all 4) I'm pretty sure it's a pump problem. Has anybody had this problem and fixed it? I'm wondering if it's an easy fix that I could do myself? Thanks
I had the pump timed at a friend VW shop, just to be sure that was not the problem. thanks