Diagnostic Method: Notes

Measure the pressure values when the enable conditions are established, and perform diagnosis by calculating those results.

1. Label the intake manifold pressure value as PMOF1, which is observed when enable conditions are established, and set the EGR target step to 50 step(s) (nearly full open).
2. Label the intake manifold pressure value as PMON, which is observed after 1500 ms has passed since EGR target step was set to 50 step(s) (when the enable conditions were established), and set the EGR target step to 0.
3. Label the intake manifold pressure as PMOF2, which is observed after 1500 ms has passed since EGR target step was set to 0 (after (1500 ms + 1500 ms) have passed since the enable conditions were established).

• Abnormality Judgment 

Judge as NG when the following conditions are established.