Northstar PCM - Service Parts

NO.: 93-I-17
DATE: Jan. 1993
GROUP: 6
CORP. NO.: 216006

SUBJECT:
INFORMATION ON 1993 4.6L NORTHSTAR PCM SERVICE PARTS

Early 1993 Allantes were built with PCM's containing tin-plated connector pins. Later 1993 Allantes and all 1993 Eldorados and Sevilles equipped with 4.6L Northstar engine were built with PCM's containing gold-plated connector pins. When servicing a 4.6L Northstar PCM, the replacement PCM must contain the same type of connector pins (tin- or gold-plated) as those in the original PCM. 1993 Allantes containing PCM's with gold pins may be distinguished from early 1993 Allantes by a V4J RPO code on the service parts label.

NOTICE:
Care must be taken to assure that vehicles receive the correct service PCM. Failure to install the proper service PCM may result in various driveability problems that appear as the vehicle ages.

Use the following chart to select the proper PCM service part number (the PCM service part number is on the PCM label):

Vehicle Service PCM P/N

1993 Allantes without RPO V4J 16159277
1993 Allantes with PRO V4J 16180517
1993 Eldorados and Sevilles with 4.6L Northstar 16180517

Parts are currently available from GMSPO.