7747 vs 8062

[s. douglas taylor]

-----Original Message-----
From: Ludis Langens <ludis at cruzers.com>
To: gmecm at diy-efi.org <gmecm at diy-efi.org>
Date: Monday, October 02, 2000 5:40 AM
Subject: Re: 7747 vs 8062


>Reid Bishop wrote:
>>
>> Last night, I decided to try the 8062 as opposed to the 7747.  The 8062
has
>> the ANKB calibration.  Well,  the folks at Howell were dead wrong.  As
far
>> as I can tell, this ECM/calibration is MUCH better.
>>
>> Does anybody have any info on the 8062?  It was only used on 88-91 S10
>> trucks, even though they also used the 7747 in '90 and '91.
>
>For those years of S10's with the 4.3, the 8062 was used with
>automatics, the 7747 with manual transmissions.  Not all years offered a
>manual, hence the 7747 wasn't used for some years.  I assume your engine
>swap has an automatic.  Your 7747 chip (AKDX) is for an automatic, but
>not for an S10 4.3.  Perhaps the full size trucks tuned the 4.3
>differently - hence you had problems with that chip.
>
>--
>Ludis Langens                               ludis (at) cruzers (dot) com
>Mac, Fiero, & engine controller goodies:  http://www.cruzers.com/~ludis/
>
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>

not entirely true. i have an '89 gmc jimmy (s15) with a 4.3L v6 and
automatic. it has an 8062 ecm; the chip is AMRW.

ciao...douglas

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