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

[Jason Wilkerson]

I aggree, but I see no codes.  Per the procedure, I turned the motor over for a few seconds, left the key on, then jumpered the contacts.  Still no codes.  I assume if I would have not turned the engine over I would have gotten a crank position sensor code.  I will look at the sensors.  Thanks.

--- On Sat, 10/24/09, 7013885254 <chance9121 at gmail.com> wrote:

> From: 7013885254 <chance9121 at gmail.com>
> Subject: RE: [V8] UPDATE Engine Trouble (v6 - but still Audi)
> To: "Jason Wilkerson" <wilke_jb at yahoo.com>, "V8 list" <v8 at audifans.com>
> Date: Saturday, October 24, 2009, 6:31 PM
> I think its a combo of ekectrical
> frying and interlock.
> 
> I would say check for the crank position sensor and cam
> angle sensor  if it has it for starters.
> 
> On the vr6 motors (closest relevance I've got)  if the
> timming belt slips a tooth or the timming is off too much
> the ecu withholds fuel and spark.
> 
> Number of sensors do this.  I would focus you search
> to timing and temp related engine sensors in and around the
> heads, as they likely got the hottest.  
> 
> good luck. 
> 
> ---- Original Message ----
> From: "Jason Wilkerson" <wilke_jb at yahoo.com>
> Date: 10/24/09 5:42 pm
> To: "V8 list" <v8 at audifans.com>
> Subj: [V8] UPDATE Engine Trouble (v6 - but still Audi)
> Ok, time for an update.  I will warn you I am more
> confused then ever now.
> 
> Went to work on it today - tested compression, found same
> compression numbers I found 6mo ago (when it was running,
> BTW).  Around 180 psi all around.  Good
> numbers.  
> 
> Then I checked spark - Mind you I assumed that I had spark
> because it would cough and sputter with starting fluid? -
> guess what, no spark?  What is the deal with that - I'm
> thinking that it would try to start with fluid because of
> compression?  Does that sound crazy?  Anyway, I
> tryed 6 different plugs, all 3 coils, different wires -
> still couldn't get it to spark.  What is the
> deal.  
> 
> I'm still not sure that I'm getting fuel out of the
> injectors, none of the plugs were wet though so it seems as
> if it isn't getting into the cylinders.  
> 
> I pulled the codes - 4444 - no codes present.  
> 
> I even tried a new key switch, because it has had trouble
> in the past - no change.
> 
> So - my three current theorys are the following:
> 
> 1. The oil leak and loss of pressure is totally unrelated
> to the no start problem and something like the computer is
> fried?(hard to belive, I know - but belive it or not I have
> had something like this happen before) 
> 
> 2. There is some sort of interlock that stops fuel and
> spark if oil pressure drops to protect the engine? Again,
> I'm not that familiar with this car or it's electrics and I
> don't have a service manual that I can use.
> 
> 3. The engine got hot because of lack of oil and fried
> something electrical?  
> 
> So far, everyones suggestions have been very helpful and
> sent me to look in various directions - I know the answer is
> out there - and I'll bet money that someone on this list has
> it.  Thanks all.
> 
> 
>       
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