I got a code for glow plug 5 over a period of several days. I figured I'd just replace that one real quick and maybe do the others later. Since I ordered the plug the check engine has not been coming back on. Just curious if this can just be an anomalous issue that corrects itself or should I just go ahead and replace it? I know it's a pretty quick job but time's at a premium with other items this weekend. This is a 2015 with about 66,000 miles.