Re: 1999 GTV 3.0 V6 is sick!
Thanks all. The connector is, as you said, underneath a little panel right of and underneath the steering wheel. Diagnostics is operational.
Only fault indicated was an 'old' immobiliser fault which I cleared. This would seem to be unrelated to existing problem since, (a) the car fires but dies - if the immobiliser is active the engine won't even fire. (b) clearing the code still leaves me with the same problem.
Next I checked the lambda sensors (both pre-cat):- the first one reads 722mV and the second 702mV - does anyone know if these are OK?
Cant get MAF information since the car needs to be running but doesn't show up as a fault.
Any ideas? There are a lot of sensors available for plotting but I'm not sure which ones would be relevant to investigate.