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

[Kent McLean]

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"