[V8] RE general poor running (code reading woes)

[Ryandfreise at aol.com]

2)  Code Retreival:  Inop.  I was using my little LED w/ 
> jumper wire setup, which has worked countless times in the 
> past.  But now it just glows red, and won't start any code 
> blinking sequence.  Fuse #4 OK, +/- in the first black 
> terminal confirmed.  Still working on confirming continuity 
> w/ other terminals and corresponding ECU plug wire.  This 
> malady has me especially concerned.

This reminds me of when I got mine, as soon as I plugged in the LED it would 
light up (key on or off) and stay on. Long story short it was traced to an 
incorrect fuel pump relay. Mine showed that is was in limp mode (I know this 
doesn't apply to you) but may be useful to someone in the future. 

>Any intel on the location of terminal 13 and 55 on the ECU plug?  

Pin 13 is WH/BK and in the diagram on page 89-01-16 they show it as 2 wires 
one goes to the fuel pump relay terminal 40/LA (this may be a 49 darn scanned 
manual) and also to the DLC 2i/1

Pin 55 is BL/Y goes through connecter 14b/9 and then to the DLC 2i/2.page 
89-01-14 the DLC's are on 89-01-46

Now that I have written all that I'm wondering if you meant location in the 
plug. I could not find a picture in the manual but do remember seeing one on 
Alldata. 
In my car the PO had put a fuel pump relay for a 5k (you know the one with 
the spot for a fuse on top) with a fuse in it and this was allowing voltage to 
get back through. I can't really remember if anything else was not right 
because it pretty much sat in the driveway untill after we figured it out. Unless 
you have the wrong relay I'm not sure how this would happen since IIRC the 
correct relay did not have a pin in this location.

HTH
Ryan