2D Pro-Jection O2 sensor

[Fitzgearld, Fredric]

Thanks anyway...

The 2D has a 6 pin connector that the sensor plugs into.  I guess I need 
to find someone that has the closed loop "add-on" for the 1 or 2 barrel 
system.  I know that the sensor needs at least 3 of them.  If in fact 
only 3 pins are used I'm sure I can figure out which wire goes where.  
That in the world would the other wires be for???

I have about 3 chips.  All the tops are painted so I can't get the codes 
off them.  I do wish there was a way to reprogram it, though.



FEF
____________________ Reply Separator _________________________________
Subject: RE: 2D Pro-Jection O2 sensor
Author:  Mike Jones [SMTP:rmjones at cyberhighway.net]  at MSXGATE
Date:    4/15/98 1:27 PM


My 4D arrived today.  Can't help too much I'm afraid, but on the 4D the 02
sensor plugs directly into the ECU (via the harness, of course, but there is
no
other interface of any type)  I imagine the 2D is the same, but you'll have
to
figure out which wire goes where.  (The 4d has a 36 pin connector)  Holley
may
be willing to help you answer that one.  If not you should be able to reason
what's what.

Is the 2D as heavily potted as the 4D is?  You can't see anything except one
PROM and a couple of regulators w/o/ ruining the potting.


>>Fredric Fitzgearld wrote:

All,

I got my 2D Por-jection (502-20) system late last week.  Inside I found
a bunch of resistors, a PROM, something that that might be a processor
(a small square chip), and what might be a driver chip.  Holley painted
over the tops of the 2 chips that were not the PROM.  I'll look into
getting the numbers, later.

Now, for the question of the day:

Do any of you have a wiring diagram for what plugs into the 6 pin plug?
I have the heated sensor from the analog system.  What goes between the
sensor and the ECU?  If the sensor goes directly into the ECU, what pins
do they go to?

Anyone have the information for the 4D closed loop system?

Thanks,

FEF>>