[urq] urq no start

[fdekat]

> Message: 1
> Date: Thu, 12 Jul 2012 20:36:41 -0400
> From: Justin Rettaliata <jretal at gmail.com>
> To: "urq at audifans.com" <urq at audifans.com>
> Cc: "urq at audifans.com" <urq at audifans.com>
> Message-ID: <E25F9A76-FC26-4B50-A5DD-39E9E236CC40 at gmail.com>
> Content-Type: text/plain;	charset=us-ascii
> 
> Thanks for te suggestions, all. 
> 
> After continued tinkering last night, it seems that the car is giving me a
> single sporadic spark. Had all 5 plugs out at the same time, and even
> grounded the coil and saw that it sparked temporarily and then stopped. So
> from talking around, this is pointing to a CIS issue. 
> 
> With that said, where do I look?  Fuel pump was hard wired by the previous
> owner, so it's always running when the key is on. Is there a relay I should
> be checking (hear clicking from in/behind the dash when cranking) or
> possibly a blown fuse?  From looking around I didn't find any blown fuses,
> but I might e missing something. 
> 
> Any and all help is much appreciated!  Trying to get this running sober can
> get it off the trailer and into a garage again!
> 
> Thanks!
> 
> -j

Hello Justin:

Assuming the stock URQ ecu, MAC 02..

Although I can't remember the source (or find a reference), I seem to
remember that the 'single spark on power-on' was a design feature of the ECU,
to help troubleshoot ign problems.  As it were, the 'single spark' indicates
that the ecu is getting powere and is outputting a signal, that the 'power
module' over the glovebox is good, and that the coil works.

So... If you are still not getting sparks other than that single spark when
cranking, I'd say situation points to the ECU not getting the correct
pin/ring gear/ hall sensors signals or timing.  I can't see how a CIS issue
would give you no spark, as is a totally separate subsystem.

In addition to Phil's recommended link, you may find these handy for no
sprk/sensor info:

Factory docs:
http://www.quattro.ca/Urq/urq-IST-Introduction.pdf
http://www.quattro.ca/Urq/urq-IST-MaintAdj.pdf

ANd if you have never been here, *lots* of good info..
http://www.sjmautotechnik.com/trouble_shooting/10vtecu.htm