'91 Camaro - Electric Fan Control

[Manuel Desantos]

I am having a sililiar problem with my setup.
I did a carb to TPI swap on my 86 Trans Am, used an 87 Setup and
switched to a 91 Speed Density ECM, modded harness, etc... and burned
some chips and my fans didn't come on.  I also use TunerCat and changed
my fan temps to 180 and 210.  Right now I have a manual switch to turn
them on.
I am waiting for my CSI Digital Temp gauge to come in, it is
programmable so I can use that to turn my fans on and off automatically.
Sometimes I forget to watch my temp gauge when I am in traffic or idling
and the car runs way too cold if I keep the fan on all the time.


Ken Richardson wrote:

> Does anyone on this list have any experience working with '91 GM
F-body
> ECMs, specifically the fan on/off temperatures?
>
> Here's my problem. We installed a 383 stroker in a '91 Camaro and have
been
> burning EPROMs to correct the fuel mappings etc. Everything is working
well
> except I can't seem to get the fans to turn on and off when I want
them to.
> The first thing that happened is the fans reversed, Fan #2 was coming
on
> first, then Fan #1. They were coming on around 210 degrees even when I
set
> them to 180 and 200 respecively. Then I burned an EPROM with both fans
set
> to 190....now Fan #1 doesn't come on at all and fan #2 comes on at
210.
>
> I'm using the Tuner CAT program to modify my EPROMs. Could this be my
> problem? Ideas? Does anyone have a wiring diagram of the fan
circuitry?
>
> Thanks
> Ken R.
>

----- End of forwarded message from owner-diy_efi at diy-efi.org -----
------------------------------------------------------------------------
----
To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the
quotes)
in the body of a message (not the subject) to
majordomo at lists.diy-efi.org


----- End of forwarded message from owner-diy_efi at diy-efi.org -----
----------------------------------------------------------------------------
To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes)
in the body of a message (not the subject) to majordomo at lists.diy-efi.org