[V8] V8 Digest, Vol 86, Issue 13

[ron_01056 at yahoo.com]

U all know how easy it is to hook the CEL light to blink on the instrument cluster rite? 
Not sure why lister's are cobbling up LED and resistors.

 Ron

Sent from my Verizon Wireless BlackBerry

-----Original Message-----
From: Mark Hanman <av8ruk at hotmail.com>
Sender: v8-bounces at audifans.com
Date: Wed, 29 Dec 2010 01:19:23 
To: <v8 at audifans.com>
Subject: Re: [V8] V8 Digest, Vol 86, Issue 13


>    5. Motronic part numbers (Peter Littlewood)
>    6. Re: Motronic part numbers (Ed Kellock)
> 
> 
'' I've attempted to "blink out the codes" with a suitable LED and resistor. However instead of it flashing anything useful  at me, it simply comes on as soon as I connect it... get brighter when the ignition is switched on and then go dimmer again once the engine is running....
> Any thoughts on the ECU issue, most welcomed !!''
> Cheers
> 
> Pete Littlewood
> I think I recall something about that the blink light bulb used should be a
> standard bulb, not an LED.  
> 
> Ed


I used the SJM site.  I actually built my lead with 2 LEDs, wired reveres to each other, and using 680ohm resistors inline with each led.
I found that there was some illumination, residual current, with the lead connected.  But it wasn't full bright, and no codes.Checking through the notes, I found I had a fuel relay (relay #10) with a fuse holder in the top, with a fuse in position.  Removed fuse, followed procedure. ECU codes output.  Job done.No joy on the TCU though, but that's another issue...
Hope that helps.Happy new year! 		 	   		  
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