2.0l Petrol Non Hpi Starting Problem

[mlkey]

Hi,

 

I have recently started to have issues starting the C5. It cranks over fine, but it no longer springs into life, it is more of a stumble. I used to be able to let go of the key the moment it fired, and it would be there, running smoothly. Now, if I let go of the key as soon as it fires, more often than not it does not keep running. I am finding I have to keep the starter motor engaged for an additional few seconds, after which it runs fine.

 

Any ideas where to start looking? I was wondering if it might be low fuel pressure, I can here the pump running when I key on, but have recently found that somebody has recently had the cover off from under the seat, wondering if this may be related to the current issue.

 

Thanks.

 

Mikey.