Don't know your chassis, but if it's like mine then your fuel pumps are by the right rear wheel. Possibly with a plastic cover over them. If you put a hand on them you can feel them running if the engine is running.
Couldn't tell you for sure if that is your problem though.
Good luck.

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Fourings

84 Audi Coupe GT with Turbo engine, EFI (buh-bye CIS), Jamex seats, Koni's/H&R's, e-code lights. 210k and counting.
1992 Anthracite 400E, 161k, "Grey Ghost".
1986 VW Quantum Syncro, 192k, gone to the crusher in the sky.
1989 300TE 172k. (Was mine, now also Mom's car)
72 280SE 4.5 (Mom's car)