Under load, though, you go out of closed loop and O2 sensors aren't being
used. Does the 14.7:1 still apply or do the other built-in tables come into
play?
Ron
00 SLT QC 4X2 5.9 46RE 3.92 LSD
For modifications see my DML Profile
-----Original Message-----
From: owner-dakota-truck@BUFFNET.NET
[mailto:owner-dakota-truck@BUFFNET.NET]On Behalf Of Shane Moseley
Sent: Thursday, November 16, 2000 5:04 AM
To: dakota-truck-moderator@twisted.twistedbits.net
Subject: Re: DML: Viper/Dakota Map Modifier
<snip>
Lets be clear on this - it does NOT change the A/F Ratio! What it changes
is
the signal that the PCM is getting from the MAP sensor. Nothing is changing
the signal from the oxygen sensor. It is still a 14.7 to 1 oxygen sensor.
The
PCMs main strategy (closed loop) is to hover around 14.7 to 1 Air/Fuel
ratio.
It will do this with or without the VEC1 being hooked up. I would love
someone
to be able to prove otherwise but only the high-doller aftermarket EFI
vendors
can actually allow you to dial in say a 12.5 to 1 A/F ratio and run around
in
closed-loop around 12.5 to 1 (best power).
<snip>
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