Just updating on my MCS. Was having a p0302 code(cylinder 2 misfire) recently in the cold weather. Replace plugs and was ok? ,still had slightly rough idle . Then before the recent snow storm it started on 3 cylinders and then stalled and restarted fine. So I bit the bullet and bought 380 cc injectors, same price as standard. Took about an hour to install . On start up ran great ,let sit overnight outside in under 30 degrees. the next day start up was good ,smoother idle just running much better. So it looks like an injector was not working right. Seems like it is good now but keeping fingers crossed.

 

Assuming you cleared all the codes after the install? Injectors can be a known problem area with diagnosing misfire codes. If it does come back you'll want to do a compression/leak down test. If it's running much smoother/better now it's probably a good bet to say you solved your issue. Just keep driving it and see if anything changes.