Idle Fluctuation FIX
 

Anyone experiencing this issue I encourage you to try this.

I had this issue very early in my FR-S. About 250 miles in and I noticed it the first time. The idle was not steady and it would also drop and just jump up past 1k to compensate.

I took a swing in the dark after someone reported the Perrin crank pulley fixing this issue for them.

I ordered a Perrin crank pulley and installed it. The problem appeared to immediately disappear. 2500 miles later I am still issue free. I would consider it solved.

Interesting! Can you post a link the report? I'd like to read their story too.

http://youtu.be/lw2PgypoAaEI have the crank pulley, and the stg1 tune. Neither have "fixed" the problem for me. initially yes, but it all came back.

Ha! that reminds me of this oldie.

http://youtu.be/lw2PgypoAaE

Original cartoon.

https://www.youtube.com/watch?v=bETCusT5kNM