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dsiegel360 dsiegel360 is offline
Doug Siegel
Join Date: Oct 2007
Location: Bloomington, IN
Posts: 314
Originally Posted by les_garten View Post
Some would say that factory EFI cars cruise leaner than 14.7, but it's not something I would look to do.

The popping on decel is a 930 thing that I don't believe you can get rid of with CIS. An EFI car does not have the popping(If it is setup properly). When you back out of the throttle, you cut off the air and you should see your AFR dive down towards 9 or 10 when it's popping. The way EFI takes care of this is that it cuts the fuel to the injectors and they actually go lean on throttle over run.
Actually, the AFR goes way lean when I back off....16 or 17.

How does the BOV function in this process?

On regular road driving, in normal traffic conditions, rather than just letting off the throttle, I throw it in N and wear out the brakes. I'll save lean conditions for the twisities.
Old 04-14-2008, 04:56 AM
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