'91 Camaro - Electric Fan Control

[rr]

I take it that this is a TPI setup w/a '730 and $8D mask. The only SWAG
I can suggest  is that your def file is for the Vette $8D and not the
f-body $8D mask. It is my understanding that there are slight differences
between the two vehicle masks.

BobR.

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