Ang: RE: [Gmecm] PE lean issues on a ?747 TBI

[Per Lonnborg]

Thank you very much David, Jay, Joe and others for your answers, now I can 
move on!

I?ll check the fuel-pump, filter, flow, pressure and the charging system to 
begin with.

Maybe it is that I?m "on the edge" on fuel delivery right now. The links on 
adjust fuel pressure were very interesting! Seemed quite easy to adjust 
fuel pressure.

Two more things:

1. David, you mentioned The "Power Enrichment AFR vs. RPM"-table, I noticed that 
it only has 9 tables(0-3200RPM in steps of 400RPM), does that mean that 
what I put in the "3200 RPM" cell will also affect RPM above, say 3600-5500RPM?

2. Is it common on stock TBI?s (exept for changes in the calibration) with 
modified engines that the pulse-width reaches it limit, i.e. "constantly 
open", with I guess burned up injectors? Or is it more common that the stock 
trottle bore itself restricts airflow before 100% injector PW?

I?ll let you know the results when I?m finished testing!

/Per