Full Throttle Enrichment (Digifant II)

DIGIFANT II

Full Throttle Enrichment - Checking

Requirements

- Engine oil temperature at least 80°C (176°F)
- Coolant temperature sensor and wiring OK
- Throttle switches and wiring OK.
- VW 1367 engine tester and EPA 105 CO tester connected.
- Start the engine and raise speed to a minimum of 2100 RPM four times, letting the throttle close each time.



- Open the throttle slowly with a screwdriver (2) to increase engine speed to 5100 RPM and note CO reading (allow a moment to let CO reading stabilize).
- While maintaining 5100 RPM, push and hold full throttle switch closed with your thumb.
- After 2 or 3 seconds, CO content must increase by at least 1.5% from initial reading.

If the CO reading does not increase,

- Replace the Digitant E.C.U.