Skylark L4-144 2.4L DOHC VIN T SFI (1997)
Ignition Control Module: All Technical Service Bulletins
PROM - No Start Condition, Ignition Module
File In Section: 6E Engine Fuel & Emission
Bulletin No.: 77-65-16
Date: May, 1997
Subject:
No Start Condition
(Reprogram PCM)
Models:
1997 Buick Skylark
1997 Chevrolet Cavalier, Malibu
1997 Oldsmobile Achieva
1997 Pontiac Sunfire, Grand Am
with 2.4L Engine (VIN Code T - RPO LD9)
Condition
Some vehicles with the above condition may exhibit a no start condition caused by ignition module failure. This failure results in a loss of spark to the
ignition coil for cylinders 2 and 3.
Vehicles Involved
Involved are certain 1997 J-Car and N-Car models equipped with the 2.4L (RPO LD9) VIN Engine Code T engine, that fall within the following VIN
breakpoints:
Cause
A voltage feedback condition in the ignition module caused by random voltage spikes in the vehicle electrical system may cause the control circuitry in
the Ignition module to be damaged.
Correction
Install a new Ignition Module, and reprogram the PCM with the revised calibration that prevents the voltage spikes from reaching the ignition module.
This calibration is available on CD-ROM # 6 and later versions.
Calibration Numbers
