feel the love? charging problem.

Tue Sep 16 19:25:19 PDT 2008

Ok, in the 1st test, voltage in the charge/blue/exciter wire, I got 10.43 vs
12.22 at the battery.  When I grounded it, the battery warning lamp in the
IC did not come up, but the ANTILOCK OFF one did.  That lamp comes on when I
turn on  the ignition, but goes out almost immediately.

Ed

> -----Original Message-----
> From: alancordeiro at att.net [mailto:alancordeiro at att.net] 
> Sent: Tuesday, September 16, 2008 6:22 PM
> To: Ed Kellock; 200q20v at audifans.com
> Subject: Re: feel the love? charging problem.
> 
> 
> Ed,
> 
> Sorry to see you so frustrated. Lets approach the problem slowly.
> 
> Something in the bootstrap charging circuit is awry.  Else 
> your battery 
> light would be coming on. This problem may be in the lamp, 
> the socket, the 
> IC solder joints, the wiring upto the alternator, the 
> alternator regulator, 
> the alternator brushes, or the field winding itself.
> 
> If you turn on the ignition (not start) try and measure the 
> voltage in the 
> charging wire where it goes into the alternator. You may have 
> to press in a 
> fine pin in through the insulation to get the reading if you 
> do not have 
> access to the terminal at the back of the alternator.
> If this voltage is close to battery voltage, the problem is in the 
> alternator. If close to zero, the problem is in the wiring 
> before it gets to 
> the alternator.
> Hope this helps narrow down the location of your problem somewhat.
> 
> To confirm your diagnosis from the above test, if you get 
> full voltage at 
> the field wire, ground it and see if the lamp in the IC comes 
> on. If there 
> is next to zero volts, feed the wire at this point from 
> battery + with a 2 
> watt lamp in series, see if the alternator charges.
> 
> From my experience, the most common problem I've seen is that 
> the brushes in 
> the regulator wear out at around 60-70k miles, YMMV.
> 
> Alan
> ----- Original Message ----- 
> From: "Ed Kellock" <ekellock at gmail.com>
> To: <200q20v at audifans.com>
> Sent: Tuesday, September 16, 2008 1:29 PM
> Subject: RE: feel the love? charging problem.
> 
> 
> > I'm not exactly right now... I wrestled with my IC last 
> night to the 
> > point that it is still out, I have cuts on my fingers with the net 
> > result so far being that I have determined the battery warning bulb 
> > does work and was not my problem, and I broke the door ajar 
> and check 
> > engine bulb sockets while trying to put the fucker back in.
> >
> > I have had the IC out of 2 other 200's on multiple 
> occasions and this 
> > one was the biggest PITA of the bunch.  It would not come 
> loose from 
> > the top of the dash pad.  I actually reached for crow bar 
> at the work 
> > bench at one point.  Fortunately sanity prevailed and my 
> dash is still 
> > in tact.
> >
> > So, I still have a charging issue and now I need to replace the bulb
> > sockets
> > for those two indicator bulbs.  I am going to go hit a 
> junkyard and maybe
> > take my crowbar and take my frustrations out on someone 
> else's discarded 
> > car
> > and cut the sockets out with as much wire as I can get so 
> that when I wire
> > then into my car, I can set the GD IC out on the sidewalk 
> before I unplug
> > those two bulbs from the back.
> >
> > This should NOT be this difficult.  My patience is wearing thin.
> >
> > Re: the charging problem specifically, the battery warning 
> light does 
> > not come on when I turn on the key.  Could this be caused by a bad 
> > voltage regulator?
> >
> > Thanks,
> > Ed
> >
> >
> >> -----Original Message-----
> >> From: 200q20v-bounces at audifans.com 
> >> [mailto:200q20v-bounces at audifans.com] On Behalf Of Nathan Winters
> >> Sent: Tuesday, September 16, 2008 6:59 AM
> >> To: 200q20v at audifans.com
> >> Subject: Re: Sudden Power Loss
> >>
> >>
> >>
> >> Limp mode feels more like rev-limiting (cutting fuel) vs. 
> only being 
> >> able to get up to 1.3 or 1.4 bar like you have.  I tended 
> to notice 
> >> it more under load at low RPMs, I guess it is a power-cut 
> mode. Limp 
> >> mode... limp mode seems like it may be a good 'valet' mode in the 
> >> future.  Is there a way to force it or is this a terrible idea?
> >>
> >> Speaking of signs and timing, I fully blamed reading all of the 
> >> recent ecu / boost / 'I'm Tired of This' threads on my latest 
> >> problem.  Based on the latest posts I can't wait for my 
> steering rack 
> >> and charging system to fail soon on my 'worthless' Audi... 
>  Oh, wait, 
> >> there was a 200q20v Love thread, makes me feel better.
> >>
> >> Good luck with your boost issue, keep us posted.
> >>
> >> Nathan
> >>
> >>
> >>
> >> ----- Original Message ----
> >> From: "jlagnese at massed.net" <jlagnese at massed.net>
> >> To: alancordeiro at att.net; Nathan Winters <natewin at yahoo.com>; 
> >> 200q20v at audifans.com
> >> Sent: Tuesday, September 16, 2008 8:33:20 AM
> >> Subject: Re: Sudden Power Loss
> >>
> >> I just thought iut may be a sign, this thread occurring 
> when noticed 
> >> the problem.
> >> ---- Original message ----
> >>
> >> Date: Tue, 16 Sep 2008 05:31:17 -0400
> >> From: <alancordeiro at att.net>
> >> Subject: Re: Sudden Power Loss
> >> To: "John S. Lagnese" <jlagnese at massed.net>, "Nathan Winters" 
> >> <natewin at yahoo.com>, <200q20v at audifans.com>
> >> >John,
> >> >
> >> >Why are you assuming your issue is also "limp home" mode?
> >> perhaps its
> >> >one of
> >> >the more common problems like the MTFS or air leaks?
> >> >
> >> >----- Original Message -----
> >> >From: "John S. Lagnese" <jlagnese at massed.net>
> >> >To: "Nathan Winters" <natewin at yahoo.com>; <200q20v at audifans.com>
> >> >Sent: Monday, September 15, 2008 9:50 PM
> >> >Subject: Re: Sudden Power Loss
> >> >
> >> >
> >> >> How do you reset the ecu? I only get 1.4 boost.
> >> >> ----- Original Message -----
> >> >
> >> _______________________________________________
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> > http://www.audifans.com/mailman/listinfo/200q20v
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> >> Date: 9/16/2008 8:15 AM
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> >
> > _______________________________________________
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