Is the immo light flashing when you turn the key? Mine will turn over but not start at all when there is an immo fault.
Check the immo chip in the key is still in place.
Try the spare key.
hal
July 2009
I can answer this question...
how can i bypass my immobiliser on my t reg vectra ?
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix car alarm systems.