1992 Custom Ecu LOOK! - Page 2 - Turbo Dodge Forums : Turbo Dodge Forum for Turbo Mopars, Shelbys, Dodge Daytona, Dodge SRT-4, Chrysler PT Cruiser, Omni and more!
TurboDodge.com MarketPlace Shelby Registry Contact Us

Advertisement - Remove these ads today by clicking here.
Go Back   Turbo Dodge Forums : Turbo Dodge Forum for Turbo Mopars, Shelbys, Dodge Daytona, Dodge SRT-4, Chrysler PT Cruiser, Omni and more! > Turbo Dodge Technical Chat > Engine Management, Fuel, Spark, EGTs, and Air/Fuel Ratios

Engine Management, Fuel, Spark, EGTs, and Air/Fuel Ratios This forum includes general electrical, modification, tuning, repair, replacement, identification and restoration of all components mentioned above including SMEC, SBEC, Logic Modules, aftermarket engine management, etc. Nitrous oxide posts go in here. This is the place

Reply
 
LinkBack Thread Tools
Old 08-30-2010, 09:42 PM   #16
Re: 1992 Custom Ecu LOOK!  
TD Hardcore User!
 
Join Date: Aug 2004
Location: Minnesota

My Ride: 1992 Dodge Daytona
Engine: 2.5l I-4 super 60
Induct: Turbo
1/4: 0.000

Posts: 3,406
Feedback: (4)
phantomrt is keeping our cars running
On all of the IC chips I worked with in college, the most important pins began at Pin 1. If you place the half-moon shape provision on the end of the chip at the 12 o'clock position, the pin to the left would be pin 1.

So, it makes perfect sense that the pins on the left (in my picture above) would be the unused ones.
phantomrt is offline  
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 08-30-2010, 10:12 PM   #17
Re: 1992 Custom Ecu LOOK!  
Garrett Booster
 
Join Date: Feb 2010
Location: Florida

My Ride: 92 Dodge shadow ES
Engine: 2.5Es Turbo
Induct: Turbo
1/4: 0.000

Posts: 179
Feedback: (0)
Acidreian is keeping the peace
Quote:
Originally Posted by phantomrt View Post
On all of the IC chips I worked with in college, the most important pins began at Pin 1. If you place the half-moon shape provision on the end of the chip at the 12 o'clock position, the pin to the left would be pin 1.

So, it makes perfect sense that the pins on the left (in my picture above) would be the unused ones.
makes perfect sense but i did read in some threat it stops some of the gauges from worked after the degrade to a 28pin but ill give it a try thing thing i wanna know now is in a 2.5 cal chip thats different from stock is that interchangeable
Acidreian is offline  
Reply With Quote Quick reply to this message
Old 08-31-2010, 06:30 AM   #18
Re: 1992 Custom Ecu LOOK!  
TD Hardcore User!
 
Join Date: Aug 2004
Location: Minnesota

My Ride: 1992 Dodge Daytona
Engine: 2.5l I-4 super 60
Induct: Turbo
1/4: 0.000

Posts: 3,406
Feedback: (4)
phantomrt is keeping our cars running
Unlikely. I say bad information. The ONLY gauge that could quit working would be the tachometer. Coolant temp runs straight from the single wire sensor to the gauge. Battery voltage, oil pressure, and fuel does the same. Tachometer and MAYBE Vehicle speed are the only ones that could be affected.

A SBEC I can be plugged in place of an SBECII and start and run the engine. I proved that. But some of the pinouts are different--one being the ASD relay circuit. Cruise control pinouts are different as is the communication with the BCM.

One thing to note with this setup is that when you switch the engine off, it keeps running for about half a second.
phantomrt is offline  
Reply With Quote Quick reply to this message
Old 09-05-2010, 10:18 AM   #19
Re: 1992 Custom Ecu LOOK!  
Level 1 Supporter

 
Shel-Game's Avatar
 
Join Date: Feb 2003
Location: Whitmore Lake, Michigan

My Ride: Daytona C/S
Engine: 2.5L T1
Induct: Turbo
1/4: 13.540

Posts: 2,349
Feedback: (14)
Shel-Game is keeping our cars runningShel-Game is keeping our cars running
Quote:
Originally Posted by Acidreian View Post
i know les then 2% were turbo 2.5's in 1992 what part number u want off the eprom chip or the plastic cover? that sbec II ecu you have has a socket done to it zend me pictures detailed because mine its 32 pin and u say urs has the ablity to socket a 28 i need to know what pins where unused
The 4 pins to the right lower corner of the SBEC are the re-flash control pins. If you swap in an 87C257, you don't use those pins.

Alternately, I make an adapter board so that you can use a 27C256, 27SF512 (more mainstream chips) or even an Ostrich.
Shel-Game is offline  
Reply With Quote Quick reply to this message
Old 09-05-2010, 10:24 AM   #20
Re: 1992 Custom Ecu LOOK!  
Level 1 Supporter

 
Shel-Game's Avatar
 
Join Date: Feb 2003
Location: Whitmore Lake, Michigan

My Ride: Daytona C/S
Engine: 2.5L T1
Induct: Turbo
1/4: 13.540

Posts: 2,349
Feedback: (14)
Shel-Game is keeping our cars runningShel-Game is keeping our cars running
Quote:
Originally Posted by Acidreian View Post
makes perfect sense but i did read in some threat it stops some of the gauges from worked after the degrade to a 28pin but ill give it a try thing thing i wanna know now is in a 2.5 cal chip thats different from stock is that interchangeable
No, none of the guages or input go directly to that chip. Think of that chip as a hard drive. Would you plug your monitor directly into the hard drive? No, it has to go thru the CPU first. All of those pins are just used to send data back and forth between the memory and CPU. If you miss a pin, the CPU simply will not be able to access the memory.

The 4 pins you don't use are simply the control pins used to reflash the flash chip.
Shel-Game is offline  
Reply With Quote Quick reply to this message
Old 09-06-2010, 07:50 AM   #21
Re: 1992 Custom Ecu LOOK!  
TD Hardcore User!
 
Join Date: Aug 2004
Location: Minnesota

My Ride: 1992 Dodge Daytona
Engine: 2.5l I-4 super 60
Induct: Turbo
1/4: 0.000

Posts: 3,406
Feedback: (4)
phantomrt is keeping our cars running
This will be the first one I will miss in many many years. Feel free to stop by my house and use my garden hose if anyone wishes to wash cars.
phantomrt is offline  
Reply With Quote Quick reply to this message
Old 10-08-2010, 09:47 AM   #22
Re: 1992 Custom Ecu LOOK!  
TD New Guy
 
Join Date: May 2009
Location: Buffalo, NY

My Ride: 1988 Shelby Z
Engine: 2.2 TII
Induct: Turbo
1/4: 0.000

Posts: 103
Feedback: (0)
smithf20 is keeping the peace
Does anybody know where you can get the chrysler adapter and software to flash the chips. anybody?
smithf20 is offline  
Reply With Quote Quick reply to this message
Old 10-11-2010, 03:04 PM   #23
Re: 1992 Custom Ecu LOOK!  
Level 1 Supporter

 
Shel-Game's Avatar
 
Join Date: Feb 2003
Location: Whitmore Lake, Michigan

My Ride: Daytona C/S
Engine: 2.5L T1
Induct: Turbo
1/4: 13.540

Posts: 2,349
Feedback: (14)
Shel-Game is keeping our cars runningShel-Game is keeping our cars running
The adapter - eBay. The software, good luck...
Shel-Game is offline  
Reply With Quote Quick reply to this message
Old 10-11-2010, 07:48 PM   #24
Re: 1992 Custom Ecu LOOK!  
TD Hardcore User!
 
Join Date: Aug 2004
Location: Minnesota

My Ride: 1992 Dodge Daytona
Engine: 2.5l I-4 super 60
Induct: Turbo
1/4: 0.000

Posts: 3,406
Feedback: (4)
phantomrt is keeping our cars running
Quote:
Originally Posted by phantomrt View Post
This will be the first one I will miss in many many years. Feel free to stop by my house and use my garden hose if anyone wishes to wash cars.
WTF. This was supposed to go to another thread. Not sure how it happened. Sorry for the confusion.
phantomrt is offline  
Reply With Quote Quick reply to this message
Old 12-25-2012, 11:43 AM   #25
Re: 1992 Custom Ecu LOOK!  
TD New Guy
 
Join Date: Jan 2008
Location: NE Wisconsin

My Ride: spirit rt/IROC rt
Engine: vnt 2.2l/2.2t3
Induct: Turbo
1/4: 0.000

Posts: 63
Feedback: (8)
MNmopar is keeping the peace
Quote:
Originally Posted by Una View Post
The 4 unused holes will be the farthest inboard holes, farthest from the edge of the board.
[QUOTE=Shellgame;2257641]The 4 pins to the right lower corner of the SBEC are the re-flash control pins. If you swap in an 87C257, you don't use those pins.
QUOTE]

The way I'm looking at the board, these comments seem to contradict each other, don't they? Which one is correct?

I'm looking to socket my '92 rt sbec in the next day or so and came across this after being confused about the mis-matching number of pins...

When looking at the "top" of the board (the side that the harness plug plugs into), there are two heat sinks under the main plug, then the chip is to the lower right of that in the corner. When re-socketing this thing, do you ignore the 4 pins closest to the heat sinks (seemingly what una said), or the 4 pins closest to the corner of the board (shellgames suggestion)?

MNmopar is offline  
Reply With Quote Quick reply to this message
Old 12-25-2012, 12:40 PM   #26
Re: 1992 Custom Ecu LOOK!  
TD Hardcore User!
 
Join Date: Aug 2004
Location: Minnesota

My Ride: 1992 Dodge Daytona
Engine: 2.5l I-4 super 60
Induct: Turbo
1/4: 0.000

Posts: 3,406
Feedback: (4)
phantomrt is keeping our cars running
My guess would be the ones closest to the heat sink. Pin #1 is on the end of the chip with the half moon thing. Often on IC chips, that is where power is fed to it. I am not sure about these, but usually things start at pin 1.
phantomrt is offline  
Reply With Quote Quick reply to this message
Old 12-25-2012, 05:54 PM   #27
Re: 1992 Custom Ecu LOOK!  
TD New Guy
 
Join Date: Jan 2008
Location: NE Wisconsin

My Ride: spirit rt/IROC rt
Engine: vnt 2.2l/2.2t3
Induct: Turbo
1/4: 0.000

Posts: 63
Feedback: (8)
MNmopar is keeping the peace
Anyone know?

I know it's Christmas day, just hoping to catch some eyes here...
MNmopar is offline  
Reply With Quote Quick reply to this message
Old 12-25-2012, 08:59 PM   #28
Re: 1992 Custom Ecu LOOK!  
Garrett Booster
 
Join Date: Jan 2011
Location: St louis area

1/4: 0.000

Posts: 217
Feedback: (1)
ohnotagain is keeping the peace
align pin #1 of the socket with pin #1 of the chip.
almost all chips use pin #1 for main power input.

when looking at the chip with the half moon divit facing straight up pin #1 is the top left pin on the chip.
ohnotagain is offline  
Reply With Quote Quick reply to this message
Old 12-25-2012, 09:59 PM   #29
Re: 1992 Custom Ecu LOOK!  
TD Hardcore User!
 
Join Date: Aug 2004
Location: Minnesota

My Ride: 1992 Dodge Daytona
Engine: 2.5l I-4 super 60
Induct: Turbo
1/4: 0.000

Posts: 3,406
Feedback: (4)
phantomrt is keeping our cars running
That's exactly how I learned it in my electronics classes. If you don't use the socket's PIN 1, nothing is going to work, because that supplies power to most chips.
phantomrt is offline  
Reply With Quote Quick reply to this message
Old 12-25-2012, 10:25 PM   #30
Re: 1992 Custom Ecu LOOK!  
Level 1 Supporter

 
Shel-Game's Avatar
 
Join Date: Feb 2003
Location: Whitmore Lake, Michigan

My Ride: Daytona C/S
Engine: 2.5L T1
Induct: Turbo
1/4: 13.540

Posts: 2,349
Feedback: (14)
Shel-Game is keeping our cars runningShel-Game is keeping our cars running
NO, what I originally posted was correct. You don't use the 4 right-most pins. (What I posted to you on the other page was wrong, and I corrected myself later). The SBECII can use 3 different kinds of chips - 87C257, the Toshiba chip, and a development module similar to an Ostrich. The power pin is duplicated, and pin 1 is either for programming or used for A15 (on the Toshiba chip). My flash module uses the 'other' 4 pins as a control bus for reflashing. A15 is also duplicated on those pads.

So, the chip in an SBEC or SBECII is always -ALWAYS- as far to the left as possible.
__________________
Rob Lloyd
LM/SMEC/SBEC/FCC Cal Guru
https://sites.google.com/site/calsbyshelgame/home
Shel-Game is offline  
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Turbo Dodge Forums : Turbo Dodge Forum for Turbo Mopars, Shelbys, Dodge Daytona, Dodge SRT-4, Chrysler PT Cruiser, Omni and more! forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

Member names may only be composed of alpha-numeric characters. (A-Z and 0-9)

!!ATTENTION ADVERTISERS!! If you intend on advertising anything on this forum, whatsoever, you are required to first contact us here . Additionaly, we do NOT allow BUSINESS NAMES unless you are an Authorized Vendor. If you own a business, and want to do sales on this site via posting or private message, you will need to follow the rules. Shops, Stores, Distributors, Group Buys without being authorized will see your account terminated.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On




Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.3.2

All times are GMT -5. The time now is 09:34 PM.