OBD-II (related to LT1 EFI)

[martin at mgass.demon.co.uk]

Mike,

Thanks for the reply, further info as follows :

> The absolute way to tell is by looking at the pin configuration.
> 
..Should have read ...has pin 7, but no pin 10 or 2.

> >I have a European GM car that appears to be this way (CarComp won't
> >work with it..etc etc
> hmmmm - sounds like an iso9141 configuration - what model/year car?  Where
> was it mfg'ed?  How are you reading the error codes?

..1996 Vauxhall Omega 2ltr (SimTec ECU), model first released 1994.  
Marketed in US as Cadillac Catera (but with different engines & 
different ECU ?)

...Car had some problems with Crank Sensor (now fixed), can read the error 
codes by connecting pins 4 & 6 (if I remember correct) to get the MIL to 
blink the codes. (Code was 01335).
CarComp OBDTool does not get beyond the break sequence, i.e. the ScanTool
does not see a 55H back from the ECU at the ECU preferred baud rate (was
expecting 10.4Kb).
Also got access to a GM Tec 2 Scanner (briefly unfortunately), this
confirmed error codes.
..Do you have any info on OBD-I ?

> I am trying to add as much relevant information as I can on this subject to
> our web site at www.obdii.com.

...Yes i've been there...looks like will be a great site.

regards,

Martin
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martin at mgass.demon.co.uk
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