J N's MiniRam backfire

[JN]

Does the
backfire happen while your are stomping down on the gas or when you lift
off?

Happens if you blip the gas to say 1/2 - 3/4 open real fast and let off real
fast.  It might be a decel leaning.  Good point.  In looking at my old
diacom files when I had the Super Ram and no hesitation, the zero was there
then on every shift.  Shift, hit gas O2 goes up, then Zero, then up again.

Jason
----- Original Message -----
From: "Carl Ijames" <ijames at netaxs.com>
To: <gmecm at diy-efi.org>
Sent: Thursday, November 09, 2000 2:37 PM
Subject: Re: J N's MiniRam backfire


> > The recording is a neutral blip.  It also does it in gear.  Smoothly
> > increasing the throttle is fine.  It's when you shift and then hit the
next
> > gear kinda hard you feel a dead shot and sometimes a backfire.  Another
> > interesting note is that the zero O2 reading after hitting the gas was
also
> > recorded (not noticed) when I had the Super Ram on.  There are alot of
>
> Couldn't the 0 O2 reading be decel fuel enleanment or cutoff?  Does the
> backfire happen while your are stomping down on the gas or when you lift
> off?  The 292 O2 at 3.31 TPS looks like it's going lean which I guess
> calls for more AE (my experience is all MAF and 7148), especially if the
> backfire happens before you lift, but the 0 comes as the TPS is closing
> again.
>
> > > > RPMs,TPS, O2, AFR, Knock, SA, LV8
> > > > 875, 0.530, 836, 14.7, 0, 25.4, 57
> > > > 875, 1.630, 712, 11.7, 0,13.8, 189
> > > > 875, 3.310, 292, 11.7, 0,15.9, 177
> > > > 1300, 2.94, 0, 11.8, 0, 28.2, 175
> > > > 1725, 0.90, 13 ,14.7, 0, 45.5, 124
>
> --
> Regards,
> Carl Ijames     ijames at netaxs.com
>
>
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