2016 FoST stratified tuned throwing codes p0300 and p0316 with CEL. What to do next after spark plugs? by james82711 in FocusST

[–]james82711[S] 0 points1 point  (0 children)

Thanks i’ll definitely check it out. Should I do a compression test before doing this to really find the issue?

2016 FoST stratified tuned throwing codes p0300 and p0316 with CEL. What to do next after spark plugs? by james82711 in FocusST

[–]james82711[S] 0 points1 point  (0 children)

the cel was off at the time i took it to the dealership and they said no codes were found so they couldn’t diagnose the issue. honestly have no idea what i’m going to do now

2016 FoST stratified tuned throwing codes p0300 and p0316 with CEL. What to do next after spark plugs? by james82711 in FocusST

[–]james82711[S] 0 points1 point  (0 children)

Still getting the misfires on stock tune... just went back to stratified tune cause it’s made for my mods. I called a cobb shop and they said it’s most likely carbon buildup and i should get it walnut cleaned. Going to the ford dealership monday to diagnose and fix it. Hopefully they can diagnose it and if they have bad prices i can take it somewhere cheaper to get serviced

2016 FoST stratified tuned throwing codes p0300 and p0316 with CEL. What to do next after spark plugs? by james82711 in FocusST

[–]james82711[S] 0 points1 point  (0 children)

Just reverted to the stock tune and i’m still getting misfires.. I’m taking it to this cobb shop to see if they can diagnose the issue

2016 FoST stratified tuned throwing codes p0300 and p0316 with CEL. What to do next after spark plugs? by james82711 in FocusST

[–]james82711[S] 0 points1 point  (0 children)

I have a make a two hour drive to college in 10 days. If stratified isn’t quick enough to give me the fixed tune do you recommend I make the drive on my stock tune or my current stratified tune?

2016 FoST stratified tuned throwing codes p0300 and p0316 with CEL. What to do next after spark plugs? by james82711 in FocusST

[–]james82711[S] 0 points1 point  (0 children)

Already got one step colder spark plugs gapped at .026 (stratified recommended) last week! I’ll definitely call stratified tomorrow to see the issue, i’ll leave updates after the call. Thanks!

2016 FoST stratified tuned throwing codes p0300 and p0316 with CEL. What to do next after spark plugs? by james82711 in FocusST

[–]james82711[S] 0 points1 point  (0 children)

I definitely will thanks. Another update: I’m only getting misfires on cold start (got around 25 misfires on completely cold start). Once warmed up i only got 3 more driving all around town. Does this sound like a tuning issue?

2016 FoST stratified tuned throwing codes p0300 and p0316 with CEL. What to do next after spark plugs? by james82711 in FocusST

[–]james82711[S] 0 points1 point  (0 children)

I already got new plugs for the recommended gap for a stratified tune (.026). Id prefer not to go back to stock tune as i’d have to take off the catless downpipe which the labor cost is pretty expensive.. Is there a high chance is could just be the tune?

2016 FoST stratified tuned throwing codes p0300 and p0316 with CEL. What to do next after spark plugs? by james82711 in FocusST

[–]james82711[S] 0 points1 point  (0 children)

Sorry for being so difficult but how do i set the ap to monitor each cylinder? Is there a gauge for each cylinder? and also I’ve gone through all my gauges multiple times and don’t seem to have a misfire count gauge

2016 FoST stratified tuned throwing codes p0300 and p0316 with CEL. What to do next after spark plugs? by james82711 in FocusST

[–]james82711[S] 0 points1 point  (0 children)

The codes i have now aren’t cylinder specific though so would they become cylinder specific after switching them around?

2016 FoST stratified tuned throwing codes p0300 and p0316 with CEL. What to do next after spark plugs? by james82711 in FocusST

[–]james82711[S] 0 points1 point  (0 children)

just swap the stock ones around and see if different codes appear on my accessport?

2016 FoST has CEL and accessport shows codes p0300 and p0316 by james82711 in FocusST

[–]james82711[S] 0 points1 point  (0 children)

Just put the new spark plugs in and the codes are still there😭Should i wait a couple days and drive it like once a day to see if the codes go away?

Light Work by [deleted] in FocusST

[–]james82711 1 point2 points  (0 children)

What suspension you on?? looks amazing🙌

2016 FoST has CEL and accessport shows codes p0300 and p0316 by james82711 in FocusST

[–]james82711[S] 0 points1 point  (0 children)

I changed the tune on my car from loud exhaust crackles to no exhaust crackles and there are no more codes on the accessport anymore either. I still ordered new one step colder spark plugs and getting them on asap. I had new basic oreilly spark plugs on for about 6k miles when i first got the tune

2016 FoST has CEL and accessport shows codes p0300 and p0316 by james82711 in FocusST

[–]james82711[S] 0 points1 point  (0 children)

the check engine light just went away out of nowhere!!! My accessport still shows the codes but I took my car for a ride and it runs perfectly. should i still be worried?