So my Z is still having this issue, when I stop @ a red light, stop sign etc and I step on the gas to "go" it won't. It feels like it has no power. Its not misfiring and I don't seem to have any vaccum leaks or anything....MAF is good and everything else checks out. Has someone else experienced this? what was it and how did you get it fixed? Any help is GREATLY APPRECIATED. I don't know what else to do. LoL