[V8] I can kind of see it

[Tony and Lillie]

> Survey says...
> 2322 - The damn IAT sensor again.  Can I get to the PCM by pulling the
> dash pad?  I guess I need to check to see if the signal's getting to the 
> PCM

No,pull the knee bar on the drivers side, below the steering wheel. It's the 
top control box of the two stacked, opposite the fuse box in the car. You 
shouldn't have to pull them out, just pull the plug off the top and pin it 
out.


> 2342 - O2S voltage no change.  Same code as before
> 2112 - Timing Ref Sensor.  This is the interesting one.
> 2341 - O2S control limit exc.  Looks like a new O2S is in my future.
>
> The Ref sensor code is interesting.  The sensors need to be changed as
> they're fickle, especially during the summer.  I've been mulling around
> the idea that this miss is one of those sensors going in and out as the
> miss only occurs with the engine hot.  But, after I cleared the codes, I
> ran up to my FLAPS to get some misc. crap and when I came back out, the
> car did it's "nope, not gonna start" thing.  Let it sit for 10 seconds,
> started right up.  So I'm 75% sure the 2112 code is from that occurrence.
>

Last I checked, Audi 5000 Turbo sensors are cheaper, I believe Rockauto.com 
is the cheapest. The 5000 sensors are identical except longer wires.

> If I have time tomorrow, I'll clear the codes and drive the car for 10
> minutes or so before reading them again.  I consider this reading tainted.
>
> Has anyone installed a valve on the fuel rail to measure fuel pressure?
> I thought I read about it somewhere.  The AF TWiki has one for S4/S6
> cars.  It was an incredibly valuable tool on my previous cars and I'd
> like to have one to check numbers.
>


None on the car, you have to drill and add it to the fuel rail.

Tony Hoffman