T/S EECIV setup

[Programmer]

What's the Napa module part number ? I've seen aftermarket modules do some
funky things in a Ford app. When the "Spout" (EST) is disconnected, base
should be
10 deg. He should also do the EEC test that advances the timing 20
degrees--this is
a basic module/ECM checkout. It's one of the keyon engine running
tests...Fords' diagnostic
routine was pretty bad in the early days, just check a scan tool on the
procedure...most
will guide you through it. Sounds like he's starting to throw parts at
it--highly doubt that it's
a KS related problem.

Lyndon


----- Original Message -----
From: Bob Wooten <r71chevy at earthlink.net>
To: <diy_efi at diy-efi.org>
Sent: February 15, 2002 9:30 PM
Subject: RE: T/S EECIV setup


> No idea's here guys?
>
> TIA
> BW
>   -----Original Message-----
>   From: owner-diy_efi at diy-efi.org [mailto:owner-diy_efi at diy-efi.org]On
> Behalf Of Bob Wooten
>   Sent: Friday, February 15, 2002 11:01 AM
>   To: diy_efi at diy-efi.org
>   Subject: T/S EECIV setup
>
>
>
>   A buddy of mine & I have been working on a 87 Ford F150 w/a 302 (Fed not
> California) w/the EEC IV EFI setup on it.  the problem is that the ECM is
> pulling all the timing out of it when there is a load on the engine. It
does
> not appear to do it when you don't have a load & just rev the motor up.
the
> first thought was the Knock sensor, but he has bypassed it with a resistor
> (don't know what value or anything, someone @ Ford told him how to do it)
&
> it did the same thing.
>
>   Items changed:
>   Ign Module (with Napa Brand)
>   CTS
>   MAT
>   EGR (it was leaking, & needed it)
>   ECM
>   MAP
>
>   Items checked:
>   KS (bypassed)
>   Fuel pressure (solid)
>   O2 (responds predictably)
>   Ign Module (on a checker, as well as replaced with new)
>
>   Specifically what he is doing is putting it onto his dyno (IM240 chassis
> dyno), & starts to do the normal smog check under power & he noticed that
it
> pulls all 22 Deg of timing out until it is down to the 10* Base setting.
if
> he puts it into Neutral & just revs the motor all appears good.  one test
> that I thought was the tell tale was that he removed the EST (or whatever
> Ford calls it), bumped the timing up a BUNCH & then put it back on the
Dyno.
> He did a pull, & the ECM was not able to pull the timing out & all
appeared
> to work fine.  the engine still had plenty of power & it ran............
> Well ............... fine.  he moved the timing back down & plugged the
EST
> back in & the same problem came back.
>
>   Logically, I am thinking "what tells the ECM to pull timing...........
> Knock Sensor (Duh), maybe MAT, or MAP & of course the Prom.
>
>   Any help would be appreciated.
>
>   PS. Sorry about the HTML, I am @ work, & this is the only connection I
> have.
>
>   --- Bob Wooten
>   --- r71chevy at earthlink.net
>   --- www.r71camaro.homestead.com
>
>
>
>

----- End of forwarded message from owner-diy_efi at diy-efi.org -----
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