Quote:
Originally Posted by Jared.FR-S
So I am starting to get into cars (I’m a noob!) and I own a ‘13 FR-S.
A few problems I am having with it:
-Squealing noise when I start it up in the morning (30-45 degrees) not sure what it is??
-Check engine light, says it’s the o2 sensor, the o2 sensor has been replaced twice and it’s burned them up. I do not have a header but I do have a Borla axle-back exhaust on it ( pretty sure, haven’t jacked it up to see what exactly is going on under it ) . I got the car modified like this and not sure if it was tuned... or if it even needs a tune. I’ve been to multiple mechanics
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Manual transmission? If so the squeal is probably the clutch throw out bearing. If it is starting to go it is always the worst on startup.
Axle back will not cause an O2 sensor issue. Positive there isn't a header?