If you are planning on a EFI conversion or need help troubleshooting what you have or where to start tuning? Well here's a good start!
Bin files, Definition Files, Wiring Diagrams, Pictures and a whole lot more!
Installing a chip
O2 sensor placement.
GM TBI reference pictures
Fuel Pump Relay Wiring
Northstar ignition information
Tuning GM EFI OBD1
Where do you start tuning?
Injector Size Vs HP VS Fuel Pressure with calculator
TBI Injector sizes, Part Numbers and color codes
Converting from 1227747 to 16197427 Wiring diagrams and pin outs
TH400 Auto Trans Kick Down Switch Installation
1227749 Low-Z injector driver modification for running 6 and 8 Low-z injectors.
Building an EFI distributer for Delco ECM control.
DRAC information and modification
MEMCAL modification for EEPROM
1227747 Flash Chip conversion to 27SF512 Eprom
Using Extrernal ESC on P4 type ECM
Code 59 is a modified code of the Sy/Ty/Turbo Sunbird code, that has many features added to it.
E-fan control for the $0D and $0E.
Dual speed/Dual E-fan control for $0D
Patch for datalogging when using an AutoProm with $58
Diagnostics and Troubleshooting
TBI and TPI Diagnosis and Troubleshooting GM Service Manual
GM Error Codes for all vehicles! Excellent!
CTS Coolant Temperature Sensor
Ludis' excellent resource for GM EFI
Another link to reference BCC to ECM numbers.
GM RPO Codes
Conversions and Tutorials
Converting a Toyota 22r 22re 22 rte to GM ECM
1227747 HiWay Enable lean Cruise
DIY Fuel Injection for any engine! How To!
Installing GM TBI information
DuraSpark Stator Diagnosing