No sumcheck code in a '95 MEMCAL

David A. Cooley n5xmt at bellsouth.net
Sat Nov 7 21:51:09 GMT 1998


At 03:19 PM 11/7/98 -0600, you wrote:

>> >I am not sure how to tell what mine is.  It has a 32kb rom.  It is
>> >also one of those in engine computers, so it must be a bit more
>> >hardened against heat.
>> 
>> What year/app?
>> 
>93 Z28 LT1 engine A4 tranny

Are you sure the ECM is in the engine compartment?
The F-Body's usually put them behind the Glove box inside the passenger
compartment... The ABS computer (If you have ABS) is under the hood with
one large connector going to it.

>
>> >
>> >I don't think so far (for the f-bodys) that anyone is reprogramming
>> >any of the ODB II computers (96+), they almost always seem to replace
>> >the 96 compuer with a 95 computer before even trying to reprogram it.
>> 
>> Well, Hypertech has the Power Programmer, JET also has a programmer for the
>> OBD_II ECM's.
>> Problem is, you're limited on changes to what they put in the programmer
>> and custom programming (Only offered by hypertech so far) is expensive.
>> 
>
>So far the hypertech stuff does not change anything useful just fans
>on, shift points and misc. other stuff. I don't think they do anything
>much with fuel, and that is generally where the big gains are.
>

The Impala SS guys have had really good luck with the power programmer...
>From the feedback they have given it seems to modify fuel and timing as
well as have options for shift points, fan temps, rear gear ratio changes etc.

Later,
DAve

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           David Cooley N5XMT           Internet: N5XMT at bellsouth.net
     Packet: N5XMT at KQ4LO.#INT.NC.USA.NA   T.A.P.R. Member #7068
       I am Pentium of Borg...division is futile...you will be approximated.
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