Tom,

Just on the basics of fuel, ignition, and compression to start and
engine, it seems to be an ingition fault.

Have you checked that your getting voltage and suffcients amp with the
ignition switch in the START position.

Have you checked that the coil  is getting voltage and suffcient
amperage? or swapped out a coil?

The only other idea I can submit is a hall sensor fault, but more of a
hunch that having enough information to justify, but since You mention
the gas smell, which is the injectors fire or spray gas, but they get
the go ahead from the ECU once it "sees" the hall sender/distrubtor
signal, so your hall sensor seems ok .

So my guess is an ignition switch or a coil.

Sincerely,

Mark Keller
91 Carat
Cowichan Bay, BC