[s-cars] Re: Coils and PSO's

[Paul Gailus]

A lot of insight could be gained if someone could put a
scope on the drive signal to these coil units on a running
1.8T engine. You could at least get the pulse widths and
signal levels.
Putting a current probe around the coil battery connection
and 'scoping it would also be very useful. That way you
could see the current ramp up and determine its maximum level.
These results could then be compared to what we've got
on the AAN.

Paul

----- Original Message ----- 
From: Dave Forgie <forgied at direct.ca>
To: <s-car-list at audifans.com>
Sent: Saturday, June 04, 2005 11:46 AM
Subject: [s-cars] Re: Coils and PSO's


> Paul:  Thanks for your insights and info on dwell and the AAN ECU, POS
> and coil system.   However, if I hear you right, we still don't know if
> these "115 L" combined POS/Coil units are "dumb" or smart.  At the
> price, I have to think they are "dumb" (i.e. passive).  How could this
> be tested?  Or is it going to be trial and success/brutal failure?
> 
> Dave F.
> 
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