Engine Controls - ECM Modification

NO.: TSB-91-13-015
DATE: October, 1991
MODEL: 1991 Precis

SUBJECT:
PRECIS ECU CHANGES

PURPOSE
To enhance cold starting on 1991 Precis vehicles manufactured before May 5, 1991, the MPI Electronic Control Unit (ECU) has been modified. This bulletin tells how to identify the modified ECU.

PARTS INFORMATION





The label color of the new ECU has been changed from blue to red in order to distinguish it from older ECUs.

Part numbers affected:
39110-24550
39110-24553
39110-24563

WARRANTY INFORMATION
Standard warranty procedures and coverage apply.