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Old 10-27-2012, 02:57 PM   #477
Accurate Race Shop
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Drives: Scion FR-S
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Quote:
Originally Posted by switchlanez View Post
Well this is a huge facepalm. I stopped pushing to get mine replaced once I switched to ethanol-free 93 octane and the sound could not be reproduced. I'll just say fuel type is the culprit, no matter what HPFP revision, and leave it at that.
I live by a Ferrari dealership and I get 93 octane there but I well still get the chirp I just have to drive it hard before they will show up I normally run e10 blended 91 and it seems to help the noise from what I understand is fuel going into the lines intermittent instead of steadily from what my dealer said no idea if that's correct though

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