General Information
About this page
GM Body designations
W-Body Cars

Specifications & Info
Motors
Transaxles, gear ratios, etc.

Technical Stuff
Reading ECM info and code definitions (non OBD-II)
Spring Code Charts
Service Parts Identification and RPO codes
VIN decoding

Problems, Repairs, and Prevention

Message Boards

Upgrades

Rare Cars Special Sections
1988 Olds Cutlass Supreme Indy 500 Pace Car
1989-90 Pontiac McLaren Turbo Grand Prix

Take a Peek Inside Stuff
88-97 DIS (Direct Ignition System) module
88-93 MEMCAL (PROM chip)
89-92 Keyless Entry Receiver
88-93 P4 ECM/PCM

Photo Gallery

Toys and Collectibles
W-Body Collectible Scale Models and Toys

Mailing Lists
Our W-body Mailing List
Pontiac Grand Prix Mailing List (primarily 97+ GP)