Engine
Transmission
Instruments/Electrical
Suspension/Wheels
Brakes
Body
Other
Engine
Transmission
Instruments/Electrical
Suspension/Wheels
Brakes
Body
Other
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Vacuum routing is slightly different between certain model years (and US/UK models). Most of this is US-centric information.
There are a pair of solenoids mounted under the intake plenum for fuel pressure and ignition. Lotus refers to these as part #A910E6634F.
I took some time to test and investigate these solenoids (they are identical parts, but serve two different purposes).
These solenoids are a German Pierburg part (#7.12942.00) they are not necessarily an easy part to find (right now, sourcing one is more than $50 USD each).
I tested the solenoid to see the internal routing when energized and when not. The solenoid switches between connecting the top outlet to the bottom-side outlet when energized, or connecting the bottom center outlet to the bottom-side outlet when energized.