I have Stillen Gen3 on my car and for almost 2 years I had no problem. The car sits in a garage about 99.9% of its life LOL, but I left it out overnight once and it got rained on and got hit with my sprinklers and I got the same code as you. The car also Idled high at 1k RPM's. I cleared the code and knock on wood I have had no problems over 1k miles later.
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2010 Base+Sport 6spd: Stillen G3, FI Non-Resonated CBE, FI Non-Resonated Test Pipes, UpRev Tuned, Custom 24R Oil Cooler, JDM Rear Fog-OEM Harness.
???Whp ???WTQ (Will find out come spring time)
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