Lumina V6-191 3.1L VIN T MFI (1993)
New software has been released for the above Engine which revises the Malfunction indicator Lamp (MIL) operation. The MIL will now flash once and
remain "ON" when key is "ON", and the Engine is not running. When the Engine is running, the MIL should be "OFF". Supplement ST 379-93 has been
published for the above carline, which contains the correct information. These revised pages will replace those in the original service manual.
Refer to Bulletin # 376510 to be assured that the vehicle has been updated to the revised software.
