LT1 Engine Swap II

kenkelly at lucent.com kenkelly at lucent.com
Tue Apr 14 01:12:23 GMT 1998


Just joined the list today. I am putting a 96 LT1 & 4L60E in My 48 Ford daily
driver.  I really mean driver, I have used it to commute for the last three
years and am doing a refresh.

	In my first visit I played with your search engine a little. Enjoyed and
learned from the 240Z transplant thread. I had already figured out the 30 Hz
squarewave for VAT. Several people had advised me to get a 95 computer because
they couldn't delete the aftercat O2 sensors from the 96. I am running near
stock. I am leaving out the Cats, and deleting the air Pump since it has no
value without the Cats. I did get the 95 ECU with factory programming. I am
using the stock Engine Harness. I found after the fact that I should have picked
up the Forward Lamp Harness with the Engine harness. I am still collecting
parts, I won't start the swap till after Carlisle. I bought the factory manuals
and have made a table of the 5 connectors and 44 pins that connect the stock
Engine Harness to the car. The table give the location, color, and function of
each wire.

	The reason for joining the group: EFI is new to me. I have played with cars and
PC's for over 30 years, and I decided it's time to link the 2. I want to do some
simple ECU hacks, like change the Gear ratio, and tire diameter. I could buy a
Hypertech PP+, but what fun is that? I am looking for info on interfaceing a PC
to the diagnostic connector. Then I would like to use it for a Scantool, and
EEprom hacking. I saw the thread that talked about a homebuilt scantool for some
Chrysler products. Does anyone have any info on interfacing to the 95 LT1 ECU?
Does anyone have a protocol document for the ECU serial port? A basic Peek and
Poke command with some information on the location of various tables would get
me started.

		Ken




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