Grand Prix V6-191 3.1L (1989)
Idle Speed/Throttle Actuator - Electronic: All Technical Service Bulletins
Engine Controls - Revised Chart C-2B and Code 44
Bulletin Number:
89-6-23
Reference Number:
916504
Publish Date:
2/89
Subject:
SERVICE MANUAL UPDATE - SECTION 6E-DRIVEABILITY AND EMISSIONS CHART C-2B/CODE 44/1988-89 2.8L/3.L
Models
(VIN T, W)
Affected:
1989 6000 AND GRAND PRIX
This bulletin adds CHART C-2B (Idle Air Control Circuit) to Section 6E "Driveability And Emissions" of the Service Manual for the 1989 6000 and
Grand Prix carlines with 2.8L LB6 (VIN W) and 3.1L LHO (VIN T) engines.
This bulletin also revises Code 44 - Oxygen Sensor Circuit (Lean Exhaust Indicated) facing page "Diagnostic Aids" in Section 6E in the above
mentioned service manuals. Code 44 may set as a result of a faulty in the Idle Air Control (IAC) Circuit.