Ok so today I went to work on the car a little, and after putting some gas in it because it ran out last time lol. To my surprise, it started right up and idled so smooth but kinda high. It would rev out perfect as long as I went slow on the throttle. If I stabbed it quick it would cut out completely until I let off the throttle. After it got to temperature, it started stumbling just a little. After running a little longer, it finally just died. Now the ecu is throwing MAF and knock sensor codes. Also it won't start at all now unless I unplug the maf, but when I plug it back in the engine dies.