My air bag light has come on 2002 1.8
Amber light on plus red flashing light sequence appears to be 4-8
Can anyone advise as to how to rectify the problem please
I found this [http://wiki.miata.net/tiki-index.php?page=Airbag%20Blink%20Codes]
But it doesn’t mention 4-8 for a 2002 model.
Whilst I can’t say for certain that this is your problem, the underseat connectors would be my first port of call. (if a 2002 has seat airbags of course)
Disconnect the battery on both terminals, short those terminals to dischange everything, disconnect the undeseat connecters, spray with electrical terminal cleaner, and refit.