2-inch Diagnosis

WARNING: This page is about a different variant/trim than selected.

Fig 1: 0.02-Inch Diagnosis Mode Description Chart

Courtesy of SUBARU OF AMERICA, INC.

Mode	Mode Description	Diagnosis Period
Mode A (0 point compensation)	When the pressure in the tank is not near 0 mmHg, wait until it returns to 0 point (near 0 mmHg).	0 - Value of Map 1
Mode B (Negative pressure introduced)	Decrease the pressure in the tank to the target value by introducing the intake manifold pressure to the fuel tank.	0 - Value of Map 2
Mode C (Negative pressure maintained)	Wait until the tank pressure returns to the target (start level of P2 calculation).	Value from Map 3
Mode D (Negative pressure change calculated)	Calculate the time it takes for the tank pressure to change to the Mode E shifting pressure. If the tank pressure does not change to the Mode E shifting pressure, make advanced OK judgment.	0 - 0 ms + Value from Map 4
Mode E (Evaporation generated amount calculation)	Calculate the amount of evaporation (P1).	0 - 0 ms + Value from Map 4 + Value from Map 5

MAP 1 REFERENCE CHART

Fuel level (l , US gal, Imp gal)	0	10, 2.64, 2.2	20, 5.28, 4.4	30, 7.93, 6.6	40, 10.57, 8.8	50, 13.21, 11	60, 15.85, 13.2
Time Needed for Diagnosis (ms)	6400	6400	6530	6660	7020	7380	7380

MAP 2 REFERENCE CHART

Fuel level (l , US gal, Imp gal)	10.5	27, 7.13, 5.94	43, 11.36, 9.46	59.5, 15.72, 13.09
Time Needed for Diagnosis (ms)	20280	20621	21816	21816

MAP 3 REFERENCE CHART

Fuel level (l , US gal, Imp gal)	10.5	27, 7.13, 5.94	43, 11.36, 9.46	59.5, 15.72, 13.09
Time Needed for Diagnosis (ms)	21208	19288	9742	8057

MAP 4 REFERENCE CHART

Fuel level (l , US gal, Imp gal)	10	20, 5.28, 4.4	30, 7.93, 6.6	40, 10.57, 8.8	50, 13.21, 11	60, 15.85, 13.2
Time Needed for Diagnosis (ms)	200000	200000	200000	200000	200000	200000

MAP 5 REFERENCE CHART

Fuel level (l , US gal, Imp gal)	10	20, 5.28, 4.4	30, 7.93, 6.6	40, 10.57, 8.8	50, 13.21, 11	60, 15.85, 13.2
Time Needed for Diagnosis (ms)	80000	70000	60000	60000	60000	60000