Had new cam sensor fitted in vauxall agila2001now it struggles too start in mornings and won't tick over properly

. Remove and fully charge the battery. Clean battery terminals and connectors.

. Replace the platinum spark plugs, if they have not been changed in the last 50,000 miles or 3 years.

. Replace the fuel filter.

. Perform tests in the link below:

https://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-hondas-selected-other-vehicles-46563-11.html#post2123675