Andrew,
I'm doing a RA23 with 1G-GZE and my car starts. PM me with your particular problem and I will take a wild guess at it !
I'm in Perth, WA, so its a bit far to come around for a look.
Cheers,
Mitch.
Sideshow - maybe UZX73 / Peewee could have his arm twisted to fly you over here to sort out his car ?