Well i had my buddy come out and tune the car. It ran beautifully! The next day i was driving to work the car started bucking and my wideband would go from my normal cruising AFRs to about 17-18:1 afrs. I thought maybe it was raw fuel causing the reading so i pulled the plugs to visually inspect them. Cylinder 1 and 4 were white (cyl 4 was definitely leaner then 1) and cylinder 2 and 3 looked about normal. When i drive the car it seems like it goes rich then lean causing it to break up itermittently. When the car does this it wont start without me flooring the gas pedal (even after flood clear) it also will not idle. Idle afr's are around 18:1 when it acts up. The next day i go for a drive..... it runs fine, just like it did when he tuned it. My tuner thinks it is something mechanical, I on the other hand think it is something to do with the MS. I am completely lost! I did get 2 logs of when it was acting up, one highway and one on my street. If someone is interested in looking at my msq and logs I will gladly email it to them since I have no idea how to post them. Any help would be greatly appreciated!