Ford Focus ST Forum banner
1 - 3 of 3 Posts

·
Registered
Joined
·
1 Posts
Discussion Starter · #1 ·
Hey guys, new to the forum so if this isn’t in the right spot please move it, thanks!

sold my 2.0T genesis a few weeks ago and picked up a stock ‘17 st3 w 70k kilometers on it. Drove it stock for a while and got bored pretty quick, so I threw in a stage 1 Cobb kit and flashed over to stage one OTS map. Been monitoring my misfires, ignition correction, OAR and AFR. Ignition correction sometimes dips down to -1.5~ but for less then a second and returns back to 2-4 during WOT. But over a 40~ min drive I’ll get a bit over 50 misfires in total. Not sure if this is something to worry about, just seems odd and thought I’d get others input on it, don’t feel like blowing up another engine lol. Before the tune I put in ngk one step colder plugs and gapped to 0.28. Only ran 91 octane since and never gone above -1 OAR. Any input is appreciated.

thank you!
 

·
Super Moderator
2018 Ford Focus ST1
Joined
·
1,562 Posts
If it's not throwing a CEL for the misfires, then you're good. These engines misfire a lot even under "normal" conditions.
 
  • Like
Reactions: xTheMan42
1 - 3 of 3 Posts
Top