DFI and ECM Discuss all aspects of DFI (Digital Fuel Injection), ECMs (Electronic Control Module), scanners, and diagnostic equipment. Fine tune your Third Gen computer system for top performance.

7730 expansion port?

Reply Subscribe

Search this Thread

Old

Nov 21, 2017 | 04:00 PM

#1

Thread Starter

Supreme Member

iTrader: (58)

Joined: Jul 1999

Posts: 20,310

Likes: 1,066

From: Salina, KS

7730 expansion port?

Pulled the cover off a 7730 today, and couldn't help but notice a card edge connector. I wasn't previously aware there was another connector. Did a search, didn't find anything. Just curious, what the port is for?

Old

Nov 21, 2017 | 04:24 PM

#2

Tuned Performance

Sponsor

iTrader: (94)

Joined: Dec 2004

Posts: 16,774

Likes: 1,002

From: Mile High Country !!!

Car: 1967 Camaro, 91 z28

Engine: Lb9

Transmission: M20

Axle/Gears: J65 pbr on stock posi 10bolt

Re: 7730 expansion port?

For booking up a ebl p4 lol , I’m sure it’s hooked to the memcal header and to some outputs.
http://www.dynamicefi.com/EBL_P4_Install.php

Old

Nov 22, 2017 | 04:19 PM

#3

Moderator

iTrader: (1)

Joined: Mar 2002

Posts: 18,432

Likes: 233

From: Chasing Electrons

Car: check

Engine: check

Transmission: check

Re: 7730 expansion port?

Quote:

Originally Posted by Drew

Pulled the cover off a 7730 today, and couldn't help but notice a card edge connector. I wasn't previously aware there was another connector. Did a search, didn't find anything. Just curious, what the port is for?

GM used the service port for the development and calibration engineers. They had/have a HUD unit that plugged in and was used to change the calibration on the fly. Not like today, it was ***** and switches along with some displays.

The Turbo P4 document has a section on it.

RBob.

Reply Subscribe

First
Prev
1 / 1
Next
Last

All times are GMT -5. The time now is 11:47 AM.