code 44 - why?

[Programmer]

Your BL's should be around 150 to set code 44...Disconnect your MAF and see
if the
code 44 resets. If not, I'd still say the MAF tables are off--especially
when you program
a 305 bin and it solves it. Backpressure shouldn't be an issue--it'd be more
of a power
problem.

Lyndon.
----- Original Message -----
From: den Broeder, Ernst <edenbroe at cisco.com>
To: <gmecm at diy-efi.org>
Sent: Wednesday, May 16, 2001 12:53 PM
Subject: Re: code 44 - why?


> Not exactly, but close.  My BLM's were within range when the code 44 set.
>
> -Ernst
>
>
> At 12:40 PM 5/16/2001 -0600, you wrote:
> >Are the MAF tables exactly the same between bins ?
> >
> >Lyndon.
> >----- Original Message -----
> >From: den Broeder, Ernst <edenbroe at cisco.com>
> >To: <gmecm at diy-efi.org>
> >Sent: Wednesday, May 16, 2001 11:52 AM
> >Subject: code 44 - why?
> >
> >
> > > I had an interesting experience with my TPI setup in the past 2 days
since
> > > I got it running.  It's a 1989 MAF '165 system on a 5.0L with TPI.
> > >
> > > I have been using AUJM (350, auto, 3.27, FED) and it keeps setting
code 44
> > > on me.  I switched over to a APYS (305,M5,3.45) and the problem goes
> >away...
> > >
> > > Could someone please explain why I see this behavior?  I checked
through
> > > the archives and found a few tidbits that lead me to believe it's just
a
> > > case of the definition of what is lean and what is rich...?   What I
don't
> > > understand is why it would be different for different engine
> > > displacements.  Could it be because the O2 sensor is sensitive to the
> >extra
> > > back pressure a 350 (as opposed to a 305) would apply against a set of
> > > factory exhaust manifolds?
> > >
> > > Ernst
> > >
> >
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> >
>
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