There was another thread about something similar elsewhere recently... Next time it does it, eg, key in, no fuel pump, wiggle the ignition key in the barrel, I've seen it before where the feed to 'activate' the fuel pump relay is iffy - Barrel or old immobiliser etc..
Alternatively, run a feed from the coil to the fuel pump relay to activate it.
This will be a temp. fix and don't blame me if it bursts into flames. (highly unlikey to be fair).
But by 20years old the cars have had several alarm immobilisers and the ignition barrel's done a shed load of work...
Worth a punt.
__________________
1985 WR quattro, 1985 20vT RallyRep, 1993 MTM ABY S2 Avant. 2010 S3 Sportback.
|