BLM boundaries

[Shannen Durphey]

Changing cell boundaries can help with engines that like to idle roughly, esp.
if idle rpm is increased.  I've seen times when the ecm is flopping between two
cells, or spending bunches of time in one cell.  This is usually with incresed
idle speed and/or larger cam and fluctuating vacuum readings.  A noticable
difference in driveability can show up as the ecm switches from one cell to
another.  Sometimes it's better to move the lower cell to encompass more range.

Shannen

JTesta1966 at aol.com wrote:
> 
> In a message dated 8/10/01 2:42:37 PM Eastern Daylight Time,
> nwester at eidnet.org writes:
> 
> << Guys--what are the reasons for changing a BLM boundary, other than to
>  provide a rather large window
>  of operating or a poor state of tun >>
> 
> I personally change cell 0 and cell 1 boundaries if someone requests a higher
> idle speed. I always did it under the assumption you get that 2 cells of
> resolution back. Maybe others do it for other reasons and I'd like to read
> about them as well.
> 
> ================================================
> Jim (FA) Testa                                 Type86 on buick.fiendish.net
> ASE Cert Master Tech                                 jtesta1966 at aol.com
> L1 Adv Engine Performance                     http://www.turbojim.com
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