ECM Terminal Pins - Manual Update

91pontiac01

Bulletin Number: 91-6-20


Reference Number: 1165099


Publish Date: 1/91


Subject: SERVICE MANUAL UPDATE - SECTION 6E3 DRIVEABILITY AND EMISSIONS ECM TERMINAL PIN CHANGE

Models
Affected: 1990-91 FIREBIRD MODELS W/5.0L, 5.7L (VIN F, 8)


This bulletin serves to revise information found in the 1990-1991 5.0L (VIN F) and 5.7L (VIN 8) Firebird Service Manual, "Driveability And Emissions" Section 6E3.


The information in this bulletin reflects a change with the EGR circuit ECM Terminal Pin "GF9". The ECM Terminal Pin "GF9" should be shown as "GE9" on the pages listed below.

1990 6E3-A-5 Figure A-4, ECM Wiring Diagram

6E3-A-40 Code 32 Exhaust Gas Recirculation (EGR) Circuit

6E3-C7-4 Chart C-7 Exhaust Gas Recirculation (EGR) Check

1991 6E3-A-40 Code 32 Exhaust Gas Recirculation (EGR) Circuit

6E3-C7-4 Chart C-7 Exhaust Gas Recirculation (EGR) Check