I'm trying to track down an issue I'm experiencing currently. All three of these things started occurring simultaneously about two weeks ago, but I'm not sure if they're related. I'm getting a code for a misfire on cylinder 4 (P0304) with a noticeable roughness. Also, the battery will drain to dead fairly quickly. I installed a used Hass turbo kit near the end of December and the only issues I've experienced is running rich and the normal MAF cleaning issues. I'm kinda stumped on what the issue is to be honest.