Diagnostic Method
Compare the diagnostic value with the threshold value, and if a condition meeting the criteria continues for 10s x 3time(s) or more, judge that there is a fault in the fuel system.
JUDGMENT VALUE SPECIFICATION
| Malfunction Criteria | Threshold Value |
|---|---|
| Offset amount of main feedback compensation | Less than value of Map |
WARM - UP INCREASE COMPENSATION COEFFICIENT (MAP)
| Warm-up increase compensation coefficient |
0.000 | 0.100 | 0.200 | 0.300 | 0.400 | 0.416 |
|---|---|---|---|---|---|---|
| Threshold Value | 0.65 | 0.56 | 0.49 | 0.42 | 0.36 | 0.35 |
Time needed for diagnosis: 10s x 3time(s)
Malfunction indicator light illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
NOTE:
When a short period (distance) driving from the engine start to stop is repeated, engine warm-up followed may cause detection of P0172 due to gasoline evaporation within the engine oil and blow-by gas increase.