Miniram Tip in Problem

[JN]

Kevin,

    I didn't see the response.  Just the original post.

Jason
----- Original Message -----
From: "Kevin R" <KEReyn at gte.net>
To: "GM ECM mailing list" <gmecm at diy-efi.org>
Sent: Friday, November 03, 2000 12:49 PM
Subject: Fw: Miniram Tip in Problem


>
>
>
> > Hello,
> >
> >     I sent this out yesterday but didn't see any responses that might
have
> > been made because I was not subscribed properly.  If you responded,
please
> > forward the to me at jwn at sgi.net
> > Yesterdays post
> > Hi,
> >     I have an 89 Corvette with the 7165 ECM (MAF).  The motor is a
mildly
> > built 350 with a Minram intake.  I had a Super Ram and when I switched
to
> a
> > Miniram, I developed a slight tip in problem.  Sometimes I'll get a
> backfire
> > through the intake.  No vacuum leaks (16-17 in hg) , timing is set at 8
> > degrees BTDC fuel pressure is set at 50 psi vacuum line off.  I'm
running
> > stock 22 pound multecs.  Block learn at idle 126-128.  If I run pressure
> > higher than this the injectors
> > start to shut down and I actually get less fuel.  This was with the old
> fuel
> > pump and the new one.  The 7165 I guess has no pump shot table like the
> 730.
> > Do I modify the MAF tables to add more fuel at those low airflow levels?
> > Some others have claimed the same problem and more pump shot fuel was
> their
> > solution.  Plug wires not mixed up.  Will pulling a few degrees of
timing
> > help out?   Its just when you
> > goose the gas there is a slight stumble.  If the idle is faster say
1000,
> > then it does not do it.
> >
> > Thanks!
> > Jason
> >
>
>
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