Re: 89 YB vs FB Prom Problem with AC

["Dan Townsend" <xybertron@cox-internet.com>]

I am making the ecu for the 89 F-body and already have the ecu for the 89
Vette so I will look and see whats different.

From: "Romans, Mark" <romans@starstream.net>
To: <gmecm@diy-efi.org>
Subject: 89 YB vs FB Prom Problem with AC


> Does anyone know if a 89 YB (Vet Prom) can be made to work in an 89 FB
> (Camaro Firebird)
> Both L98 Engines.  I have done a prom for a friend using my 89 Vet prom as
a
> start and have got it
> running rather well, EXCEPT that when he turns on his AC the engine almost
> dies and the
> Check Engine light comes on and it stutters and sputters until the AC is
> turned off.
> I went throught the "Air Fuel Mode Words" that are at C014, C015, C016 and
> C017 and Switched
> the C017, Byte 5, Normally open fan request input from a 1 to a Zero, but
> this hasn't fixed it.
> I am stumped, Anyone know?
> Thanks
> Mark

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