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Reged: 13/06/2004
Posts: 71
Loc: Norway
ECU initial voltage signal [re: Per-Stian Bye]
      29/01/2010 20:47

Another thing you can check, that I found in my workshop manual is the initial signal from the ECU to the Lambda:
LAMBDA HEATING:
For Lambda heating I was not able to find a Voltage, the manual just directed me towards hooking up a Diode flash tester and a procedure I`m not familiar with. The PT ECU calls for a Voltage of 12-14 volts when you disconnect the heating wiering, and check between terminal 1 and 2 (white wieres) on the hareness to the ECU. Maybe these values are valid for the ABH as well?
CAUTION: YOU NEED TO KNOW WHAT YOU ARE DOING TO CHECK THE FOLLOWING. IF YOU GET IT WRONG YOU MAY TOAST THE ECU!
If you hook up the Multimeter in series and look for the current, it should be between 0,5 and 3 Amps.
LAMBDA SIGNAL:
The only data I was able to find was a voltage signal of 450mv (+-50) between Engine ground, and the Signal (black) wiere from the ECU. (Lambda disconnected) I was not able to find any "live" signal for the ECU in the workshop manual...

good luck!
NORWEGIAN
En annen ting du kan sjekke, som jeg fant i verkstedshandboka mi, er utgangssignalet fra styreenheten til Lambdaen: LAMBDA FORVARMING: ang. forvarming fant jeg ikke noen spenning, boka bare ledet meg til en prosedyre med diode blinkelampe som jeg ikke er kjent med. det eneste dette ville indikere er at utgangsspenningen når du kjører denne testen er høyere enn 0,6 volt. For PT motoren (3,6) fant jeg en spenning på 12-14 volt imellom terminal 1 og 2 (de to hvite ledningene) når motoren går, og du sjekker ledningene som kommer fra ECU`en. kanskje disse tallene funker på ABH`en også? en annen og sikrere test er viss du kobler inn ampermeteret for å måle strømmen som går med til forvarmingen. HER MÅ DU HA TUNGA RETT I MUNN. VISS DU KOBLER FEIL KAN DU TROLIG TOASTE STYREENHETEN!
LAMBDA SIGNAL LEDNING:
For selve signal ledningen skal ECU`en legge ut en spenning på 450millivolt (+-50). Jeg kunne desverre ikke finne noen "live" verdier for måling på lambdaen når den er koblet opp mot motoren og skal gjøre jobben sin. men prinsippet med osilering skal gjelde også her.

lykke til!

psb

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Entire thread
Subject Posted by Posted on
* ABH V8 problem svein westvik 03/03/2009 00:48
. * Re: ABH V8 problem svein westvik   15/08/2010 12:56
. * Re: ABH V8 problem Mario M.   16/08/2010 10:48
. * Re: ABH V8 problem svein westvik   23/08/2010 20:55
. * Re: ABH V8 problem Bastian P.   23/08/2010 22:35
. * Re: ABH V8 problem Mario M.   24/08/2010 09:16
. * Re: ABH V8 problem Bastian P.   24/08/2010 10:01
. * Re: ABH V8 problem svein westvik   24/08/2010 00:00
. * Re: ABH V8 problem Bastian P.   24/08/2010 08:14
. * Re: ABH V8 problem 32vquattro AudiAl   25/04/2010 15:50
. * Re: ABH V8 problem Ryan Z   11/02/2010 00:15
. * Re: ABH V8 problem Bastian P.   03/03/2009 14:50
. * Re: ABH V8 problem svein westvik   04/03/2009 01:17
. * Re: ABH V8 problem Michal L.   18/03/2009 01:48
. * Re: ABH V8 problem Sam S   28/04/2009 12:07
. * Re: ABH V8 problem svein westvik   22/07/2009 00:23
. * Re: ABH V8 problem Bastian P.   23/07/2009 09:42
. * Re: ABH V8 problem svein westvik   24/07/2009 23:35
. * Re: ABH V8 problem svein westvik   25/07/2009 13:18
. * Re: ABH V8 problem Bastian P.   27/07/2009 12:47
. * Re: ABH V8 problem svein westvik   27/07/2009 15:56
. * Re: ABH V8 problem Bastian P.   27/07/2009 16:34
. * Re: ABH V8 problem svein westvik   04/08/2009 15:44
. * Re: ABH V8 problem Bastian P.   05/08/2009 10:46
. * Re: ABH V8 problem svein westvik   07/08/2009 01:17
. * Re: ABH V8 problem Roy F   07/08/2009 18:18
. * Re: ABH V8 problem svein westvik   11/08/2009 23:10
. * Re: ABH V8 problem Roy F   12/08/2009 22:31
. * Re: ABH V8 problem Sam S   06/09/2009 20:23
. * Re: ABH V8 problem Bastian P.   06/09/2009 23:40
. * Re: ABH V8 problem svein westvik   27/01/2010 20:25
. * Re: ABH V8 problem Per-Stian Bye   27/01/2010 21:01
. * Re: ABH V8 problem svein westvik   27/01/2010 21:14
. * Re: ABH V8 problem Benny H   27/01/2010 21:26
. * Re: ABH V8 problem Per-Stian Bye   27/01/2010 23:19
. * Re: ABH V8 problem svein westvik   27/01/2010 23:39
. * Re: ABH V8 problem svein westvik   27/01/2010 23:11
. * Re: ABH V8 problem Per-Stian Bye   27/01/2010 23:45
. * Re: ABH V8 problem svein westvik   27/01/2010 23:57
. * Re: ABH V8 problem Per-Stian Bye   28/01/2010 20:03
. * ECU initial voltage signal Per-Stian Bye   29/01/2010 20:47

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