DIY PROM Do It Yourself PROM chip burning help. No PROM begging. No PROMs for sale. No commercial exchange. Not a referral service.

memcal differences

Thread Tools
 
Search this Thread
 
Old Aug 4, 2001 | 05:52 PM
  #1  
v8power's Avatar
Thread Starter
Member
 
Joined: Jul 2001
Posts: 136
Likes: 0
From: Victoria BC,Canada
memcal differences

I just got a spare chip holder the original number on the side is68767 8707 it has a 27c256 and two other chips 16055375 and 16055376

the spare's number is 68767 8843
the eprom is a 27c128
and the two other chips are 16072665 and 16072667 ont the *667 chip legs 2 and 15 are cut and there is a resistor between contact 2 and 3 of this chip

will these two interchange for a 165 computer and what are the two other chips besides the eprom

any info take me one step closer to knowing every thing


------------------
Objects in mirror are more stable than they appear
www.members.home.com/v8power
4BBL to TPI in the works
86 350 5spd

E.E.T (Electronics Engineering Technologist)
Reply
Old Aug 4, 2001 | 09:52 PM
  #2  
Grumpy's Avatar
Supreme Member
 
Joined: Jun 2000
Posts: 7,554
Likes: 1
From: In reality
Car: An Ol Buick
Engine: Vsick
Transmission: Janis Tranny Yank Converter
<font face="Verdana, Arial" size="2">Originally posted by v8power:
I just got a spare chip holder the original number on the side is68767 8707 it has a 27c256 and two other chips 16055375 and 16055376

the spare's number is 68767 8843
the eprom is a 27c128
and the two other chips are 16072665 and 16072667 ont the *667 chip legs 2 and 15 are cut and there is a resistor between contact 2 and 3 of this chip
will these two interchange for a 165 computer and what are the two other chips besides the eprom
any info take me one step closer to knowing every thing
</font>
there are 3 chips on a 165 memcal. The eprom as you see, then a netres (network resistor), and an ESC chip.

The 165 comes with a 27128 epeorm usually you can use the 256 by double loading the image into it, but the other two chips have to be right. Part of the netres is a resistor to set the hardware for cylinder select.

The closer the memcal to what your actually running the better. The netres also sets the RFD for limp home mode (reduntant fuel devise).

Welp, now ya know almost as much as I do. <g>

Reply
Old Aug 5, 2001 | 12:28 PM
  #3  
v8power's Avatar
Thread Starter
Member
 
Joined: Jul 2001
Posts: 136
Likes: 0
From: Victoria BC,Canada
so does that mean these are not interchangable ?

I just have concerns about the two other chips being different and that resistor that is in there

------------------
Objects in mirror are more stable than they appear
www.members.home.com/v8power
4BBL to TPI in the works
86 350 5spd

E.E.T (Electronics Engineering Technologist)
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
69GTOby
Tech / General Engine
40
Apr 18, 2016 02:34 PM
Numbah-1
Transmissions and Drivetrain
19
Sep 12, 2015 08:57 PM
J.C. Denton
Body
0
Sep 8, 2015 05:35 PM
RyanJB
TPI
0
Sep 2, 2015 01:27 PM




All times are GMT -5. The time now is 10:32 AM.