Iv got a warning light on startup that looks similar to a spark plug, it goes off after a couple of seconds, im just wondering whether this is a warning light, or whether it means its due for them to be replaced? is the warning light a spark plug or different, it comes on jst above the battery light when the ignition lights come on before startup.

welcome to the forum its supposed to come on for a few seconds

its suposed too be a picture of a fuel injector

yep its the engie management light and its perfectly normal, the light should come on and then go off after a few seconds. if the light stays on or comes on while you are drving around then there is a problem