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JFairman JFairman is offline
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Join Date: Jul 2006
Location: S. Florida
Posts: 7,274
Maybe the K-jetronic ECU is programmed differently in the 964 turbo to make the lambda valve bleed off more lower chamber pressure at large throttle switch positions. That would send more fuel to the injectors.

I don't know as I've never even seen a 964 turbo up close and don't know what all the subtle differences are in state of tune.

I remember someone posting pics of the 964 turbo and 930 fuel system specs from a book and I remember they were all the same accept for boost control pressure and I don't know where that post was and I think I remember reading it the other way around - I thought I read that the 964 turbo WUR was set to lower boost CP than the 930 one.
If it was thats probably where the extra fuel is coming from under boost.

I have no idea what thread that was in and don't feel like trying to find it right now.
Old 01-06-2010, 01:19 PM
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