1.0L Corsa-B. This one is really puzzling me. When the engine is stone cold, like first thing in the morning or in the evening after being parked all day, it starts right away after just a couple of turns. If the engine is hot, I stop for say a couple of minutes to fill petrol and then start it, it starts straight away. But if I drive to the shops, park, come back after 30 minutes, and then try to start it, it takes anything up to 7-8 turns to get it going, generally it doesn't start until I dab the throttle. Once it's running, its fine, no loss of power. I've checked the plugs; all look OK. A new coil pack was fitted about 8 months ago and until now there have been no problems. It also had a new crank sensor about 6 months ago. I replaced the coolant temp sensor when this fault started happening, made no difference. I've cleaned the wiring loom connectors with contact cleaner, it runs a bit smoother but the warm start problem still happens. The starter motor is turning the engine fine. The fact that I have to dab the throttle when its warm suggests lack of fuel, so I'm trying to figure out what type of fault would cause a lack of fuel but only when the engine is warm.
Has anyone got any ideas what it might be?
1.0 corsa-B poor starting when warm
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