[Marrk]

Originally Posted by dano

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I've driven it pretty hard, and no other issues have creeped up with the engine. My first to second gear synchro, though, can be a bit rough.

--dan

Keep us posted on this.

Originally Posted by dano

First post, to chime in...My FR-S is about three weeks old, about 500 miles on it. Second tank of known gas (filled by me, not the port of entry, or the free Dealer fill-up).

It's had the rough idle issue. Happened twice. The second time, it dipped to about 300-400 RPM, then leveled out. This was at a stop light after 10-15 minutes of city driving. It's always a bit rough when cold.

It also chirps. But, after freeway driving in high heat (where I live, it's been upper 80's during the day).

No CEL's

Decided to take it in, mainly for documentation purposes. The Dealer only had two mechanics trained on the new engine, so they consulted with the "Lead" Scion techs. They said the chirping was the Direct Injection bleeding off pressure. As for the idle, they noted it in the Case File, but nothing was found.

--dan

That's the most interesting explanation I've heard yet.