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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 746 (Engine Controls - Diagnostic Subroutines - 6.0L Diesel (99P E-Series & 99P F450/550)) >> Performance Diagnostic Procedures >> 11. Perform KOER On-Demand Self Test >> Purpose: >> Notes

11. Perform KOER On-Demand Self Test: Purpose:: Notes

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The purpose of this test is to determine if the PCM has detected any fault conditions that would cause a performance problem while the engine is running. The KOER self-test will perform step tests on the injection control pressure system and the exhaust back pressure system.

Step tests are PCM controlled tests where the PCM commands a specific exhaust back pressure or injection control pressure and then measures the result. If a predetermined threshold is not reached, a DTC will be generated. This test can be performed at any engine temperature.

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