State, fuel trim

Depending on the prevailing circumstances when the frozen values were created, one of the following alternatives may be stored.

1. no fuel trim, the start conditions have not been met  .

   This condition occurs at the crank or immediately after start before fuel trim has started

2. fuel trim with two probes  .

   This situation occurs during driving when both probes are used during fuel trim (part load)

3. no fuel trim, operation with predefined values  .

   This situation occurs during hard acceleration or during fuel shut-off when there is no fuel trim and operation is under predefined values

4. no fuel trim, operation with a system fault  .

   This situation occurs when an earlier diagnostic trouble code (DTC) was stored that caused the fuel trim to be disabled

5. fuel trim with one probe (front)  .

   This situation occurs at idling speed or during light acceleration when one probe (front) is used during fuel trim.