[V8] UPDATE Engine Trouble (v6 - but still Audi)

[Jason Wilkerson]

I grounded a plug to block - turned over and couldn't see any spark.  I don't think I'm getting fuel because I can look in the cylinder (where the plug is removed) and it isn't wet.  I have done the trick you mentioned about fuel injectors and cups - I will do that but I know I need spark first.  What would cause no spark and no fuel?  Thanks.

--- On Sat, 10/24/09, Kent McLean <kentmclean at comcast.net> wrote:

> From: Kent McLean <kentmclean at comcast.net>
> Subject: Re: [V8] UPDATE Engine Trouble (v6 - but still Audi)
> To: "V8 list" <v8 at audifans.com>
> Cc: "Jason Wilkerson" <wilke_jb at yahoo.com>
> Date: Saturday, October 24, 2009, 6:15 PM
> Jason Wilkerson wrote:
> > I pulled the codes - 4444 - no codes present.  
> > 3. The engine got hot because of lack of oil and fried
> something electrical?  
> 
> I'm confused, too, especially with no codes, but it does
> sound electrical.  My WAG would be the crank position
> sensor, as the ECU needs that to know when to start the
> whole ignition process, but a bad CPS would throw a code.
> 
> How do you know there's no spark?  I've seen those
> testers where you can set a gap [1] show a spark, but under
> compression the spark plug can't spark.
> 
> Since you are grasping at straws, here's another one for
> the haystack.  The engine needs air, fuel, and spark
> (at the right time) to run.  You have spark. Can you
> pull a fuel injector an see if it sprays (into a glass jar
> [2])?  If so,
> that would leave air.  The only way it won't get air
> is if the t-belt slipped
> or broke.
> 
> [1] <http://www.toolfetch.com/Category/Automotive/Spark_Testers/LIS50850.htm>
> [2] Obviously use caution, as vaporized fuel is highly
> flammable.
> 
> -- Kent McLean
> 1990 V8 w/5-speed and other mods
> 1991 200 TQA #3, with mods
> 1999 A4 Avant, V6 Tiptronic
> gone: '91 200 TQA x2, '94 100 S Avant, '89 200 TQ "Bad
> Puppy"
> 
>