How do you do a Koer test?

Similar to the previous question, it is also asked what is a Koer Test?

KOER stands to aKey on Engine Runninga and is performed with the engine at normal operating temperatures. As long as the conditions are present at the time of testing, this test can detect most faults.

Find out how to determine if your Ford has an OBD1 port. To test the OBD1 port's functionality, insert a test light in the test connector. Also attach a jumper cable from the connector to the signal connector. To turn the key on, move the switch to the ON position. This will start the code gathering sequence, which is composed of two digits.

How do I locate my Ford engine code?

How to Read Ford Check Engine Lights Without a Code Reader

1. Hold the reset button down to reset the odometer.
2. To access the accessory, turn on the key.
3. Continue holding down the button until you see the words TEST.
4. When the words "TEST" appear, release the odometer button. Press it again to cycle through all the onboard tests.
5. The button will push to dtc, which will display error codes.

What is MIL Command Status?

Mil Command Status- Fail. MIL is for Maintenance Indication light. It refers to emission failure. Is the yellow Check Engine Light on?