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911st 911st is offline
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Join Date: Jan 2004
Location: Sacramento
Posts: 7,269
930 fuel pumps operation?

Are both fuel pumps on a 930 on all the time?

Is voltage increased with load at anytime?

I have learned that some cars have provision to increase voltage to the fuel pumps with load.

There has been some indication that on a built CIS 930 the stock fuel pumps have not been able to maintain full system pressure at the fuel distributor contributing to our lean condition.

I am wondering if this might present some opportunity. I think I also read that GSF has some type of controllable voltage reg on hit EFI twin turbo fuel pumps.
Old 07-17-2010, 07:40 AM
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