0.04 inch Diagnosis
WARNING: This page is about a different variant/trim than selected.
Mode A: (Estimation of evaporation gas yield)
The amount of change of tank pressure (P1) in Mode A is calculated. After calculating P1, change to Mode B.
Mode B: (Seal negative pressure)
Introduce the negative pressure in the intake manifold to the tank.
Approx. 0 --> -1.4 kPa (0 --> -10.5 mmHg, 0 --> -0.41 inHg)
When the pressure above (desired negative pressure) is reached, Mode C is entered.
In this case, if the tank pressure does not become the desired negative pressure, judge that there is a large leakage in the system and judge as large leak (10 or 25 seconds).
Abnormality Judgment
Judge NG (large leak) when the criteria below are completed in the specified time.
Judgment Value
JUDGMENT VALUE REFERENCE (ABNORMALITY)
| Malfunction Criteria | Threshold Value | DTC |
|---|---|---|
| Time before reaching desired negative pressure | >/= 25 seconds | P0457 |
| Or time for Mode B | >/= 10 seconds | |
| (Min. value of tank pressure during Mode B) - (Tank pressure when Mode B started) | < -0.3 kPa (-2.5 mmHg, -0.1 inHg) |