2011 Ford Focus St - Rough Idle After E85 Conversion How To Fix Engine Alls At Op Signs Youtube

Author Dalbo 10 Aug 2026

I don't seem to see any major issue, 850 is perfectly fine for idle especially if your tuner changed your idle speed for some reason Putting e85 in a regular car causes rough running, check engine light, and potential fuel system damage Is the engine running rough, or is the idle rpm just fluctuating.

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2011 Ford Focus St - Rough Idle After E85 Conversion How To Fix Engine Alls At Op Signs Youtube

I never did, i had spitting and sputtering at wot idle issues at start up and after start up idle would drop and almost die In this article, we’ll look at some of the most common causes of a rough idle in the focus and how to fix the problem. Car would jerk sometimes at cruising how ever also please check your map.

Finding e85 can be tricky in some areas

This limits the benefits of having a flex fuel engine But if you have easy access to e85, you’ll enjoy more fuel. If you own a ford focus and it’s idling rough, you may be feeling frustrated