[Gmecm] Tuning question

[Mike V]

At 05:14 PM 4/6/2005 -0400, you wrote:

>I just fixed a problem that was keeping me from data collecting so I am just
>getting my first good data from the '749.  I added an intercooler and
>smaller SC pulley,  and it is now going way lean as soon as the boost starts
>to come on.  I've uploaded some data in an Excel spreadsheet:
>http://p-928.home.comcast.net/928-1.xls
Hi Bill,
Looking at the data alone suggests a fuel delivery problem.
The rapid lean-out without a significant reduction in injector pulse.
Have you been able to observe the fuel pressure while this is occurring?
Maybe a fuel slosh or pump getting weak?
Cheers
Mike V