rough startup

1st start in mornings usually perfect. After driving and then starting vehicle get a very weird start rpms rise to like 500 then 1000 then 1500 and then idles like it normally should in normal range. The whole slow start sequence doesn’t late but maybe 1-2 seconds. Just a rough startup...

Hello guys! My 2016 Ecoboost ghost misfires and shakes a bit when RPM drops after cold start until the engine warms up after that it runs well without any issue plus It doesn't give me any trouble codes, this happened after a head-gasket replacement and engine rebuild. Listen closely to the...

I was on the way home from doing a few datalogs on my new tune revisions from pdtuning when heavy smoke began to come out of my exhaust so i pulled over and left my car on and it repeated to smoke for another few minutes. On the way home all of my temps seemed fine and my oil pressure was...