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  1. Focus ST Discussions
    I know there are lots of threads about this but I just wanted to get some answers for my car's situation on fuel choices. So I have a 2013 Bone Stock focus ST with 118k miles/180k km on all original trans, motor, turbo, etc. I currently use 89 but is it worth going for 91 at the pump. I heard...
  2. Focus ST Discussions
    Have codes P1450 (Unable to vent tank vacuum) P2196(O2 bank 1 stuck rich) , and P0301 Cyl 1 misfire. P1450 and P2196 fall under Recall TSB 15-0034. Car ran out of gas a week ago at 10 miles to empty, so definitely think this falls under it. Going to take it to Ford soon. My question is does...
  3. Focus ST Performance
    Here it is, Everything you need to run a 4 lobe fuel pump set up. [edit]. Also Everything you need to run RS injectors. Continuing off a previous discussion: https://www.focusst.org/threads/camshaft-upgrade-2-3l-mustang-cams-on-2-0l.163401/ I started a new thread with everything included as a...
  4. Focus ST Discussions
    I have a 2017 Ford Focus ST Last night i was deep cleaning the seats and carpets of my car. I take responsibility for the battery dying because i kept opening and closing the doors so it probably drained the battery. I ended up taking another race to work and when i got back i decided to jump...
  5. Introductions
    So I’m lost at what else could be the issue looking for some idea. 2017 with 82,000 miles threw a p0302 a few weeks ago. You can clearly hear the misfire and it stumbles quite a bit around 2,000 rpm.Checked coil packs, replaced and properly gapped spark plugs, checked and cleaned all fuel...
  6. Focus ST Discussions
    Hello, I have a Ford Focus St 2016, with a air intake from mishimoto, Cobb accessport and straight pipe. Yesterday I noticed that my air fuel ratio was really high when I was out throttle, it was going up to 43 -50 but when I was in idle and full throttle it was 14.7... Is this bad I have...
  7. Focus ST Discussions
    I have a 2016 Focus ST and I have the Cobb AP set up showing my actual AFR, on idle it’s reading normal between 14.2-14.7 but once I start moving, different gears and rpms haven’t seemed to show any difference, it will consistently run 14.2-14.7, on occasion it will drop to 12.5 but from what I...
  8. Focus ST Performance
    So i’ve been thinking about upgrading my fuel system for a long time due to the fact that besides the turbo it is the limiting factor on these cars. I do not want to do the typical 2 or 4 port aux fuel way due to the difficulty of install and things that could potentially go wrong if something...
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