2D Pro-Jection O2 sensor

[Mike Jones]

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>>


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