[Gmecm] RE Tweaking Asynchronous BTW

[terry]

Speaking of EGR are you running one, if so have you
check it to see if you have egr in park when you open
the throttle if so the solinoid is bad.
Off idle the egr valve could be slamming open.
Terry

--- Beau Blankenship <ne14roxcj at gmail.com> wrote:

> >>Back to my ORIGINAL QUESTION , what is
> "ASYNCHRONOUS BTW" and how does it
> affect the VE tables. Is it nessessary or should it
> just be disabled.?
> If your reading this Steve, do you have any
> comments?>>
> 
> 
> A quick Google search for "Asynchronous Fuel" turned
> up lots of results. A
> few are information about the patent for
> "asynchronous control of fuel
> injection". The patent itself is very interesting
> and informative, and
> should answer your question very well. There is
> another link to Custom EFI's
> info page. As far as the BTW part, I have never seen
> that acronym in GM ECM
> talk. You may be referring to the "base pulse width"
> which is commonly
> referred to as the BPW. Adjusting the VE tables is
> not a very good way to
> make up for oversized injectors, IMO. There is a
> constant in TunerPro called
> "BPW constant for EGR off" or something similar
> depending on which def file
> you use. Stock setting is usually 135. I had to set
> mine to 95 to account
> for the 85lb holley injectors. I probably should
> have adjusted those asynch
> tables also, but I DID adjust my accel enrich tables
> for that purpose. Sorry
> I'm not Steve. Just thought I'd share my
> experiences. Hope it helps.
> 
> Beau
> 
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