Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSPONTIAC1987GRAND AM L4-151 2.5LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSENGINE CONTROL MODULETECHNICAL SERVICE BULLETINSECM - PACKARD 32 WAY CONNECTOR IDENTIFICATION
1987 Pontiac Grand AM L4-151 2.5L
ECM - Packard 32 Way Connector Identification
1987 Pontiac Grand AM L4-151 2.5LSECTION ECM - Packard 32 Way Connector Identification
89pontiac14
Bulletin Number: 89-6-66
Reference Number: 916521
Publish Date: 8/89
Subject: PACKARD 32 WAY CONNECTOR IDENTIFICATION FOR ALL GMP4 ECM APPLICATIONS
Models
Affected: 1980-89 ALL MODELS
This bulletin serves to clarify the labeling of the Packard 32 way connectors used on the GMP4 under dash ECMs.
Currently a common strain relief is used in both the C-D 32 pin and the E-F 32 pin connector. To properly identify these connectors, the strain reliefs must be removed. Use the lettering on the connector as shown on the attached document.
The colors used at this time for the 32 pin E-F connector are yellow, mint green or orange.
This updates any previous information released concerning identification that indicates any of these colors as being C & D connectors.
Bulletin Number: 89-6-66
Reference Number: 916521
Publish Date: 8/89
Subject: PACKARD 32 WAY CONNECTOR IDENTIFICATION FOR ALL GMP4 ECM APPLICATIONS
Models
Affected: 1980-89 ALL MODELS
This bulletin serves to clarify the labeling of the Packard 32 way connectors used on the GMP4 under dash ECMs.
Currently a common strain relief is used in both the C-D 32 pin and the E-F 32 pin connector. To properly identify these connectors, the strain reliefs must be removed. Use the lettering on the connector as shown on the attached document.
The colors used at this time for the 32 pin E-F connector are yellow, mint green or orange.
This updates any previous information released concerning identification that indicates any of these colors as being C & D connectors.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.