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Is it an 1100 or a 750?
Muzz , it is a 750 , maybe the Thunder win today has you a bit fuzzy ;D Dusty
Duh duh duh. ;DOk, so itsa 750. :D I know mine will pink on our 91 octane if it gets loaded up a bit. Certainly prefers 95 octane. I don't think it has pinked on that; however, it never gets asked to accelerate from low down.Dusty, (thread drift) saw what I think was a win from a few days ago; is that the one or have they pulled off another as well?
I had a rubber vacuum cap, that I had placed over the left manifold vacuum port, develop cracks after a year and leak air into the left manifold.Ping it did, indeed! Replaced with a short piece of fuel hose and a brass plug, secured with clamps.
Your 91 and our 91 aren't the same octane, I think.
How long has it been doing it? Is this a recent issue that just started? Just thinking about plugged injectors, fuel filter obstructions, spark plug gaps etc...starting with the easy stuff you know. To answer your question, yes, it could be a mapping issue, or too low octane gas. I have a spare ECU if you want to borrow it and plug it in. It has a the stock map loaded for an 07 Breva 750.