Electrical Connectors

[Daved and Confused]

I know I should post this in Electrical but thought there would be more chance of a response here.
I've had a car sitting for a couple years with the engine out it, before putting a new engine in I would like to make sure all the electrical plugs and connectors are clean.
Is there anything out there that I can spray into the ends of the connectors to clean them and help alleviate any issues.

thanks in advance, it's not a nova it's an Audi A4.

[7ova]

Try some brake/clutch cleaner spray

[Stuart]

Use proper contact cleaner, its not expensive

[millworm]

^ thats it, it's good stuff

[Daved and Confused]

Use proper contact cleaner, its not expensive

Cool, as simple as that - Can an you recommend any specific one which you have used?

cheers