Home‎ > ‎Automotive‎ > ‎

Chevy TBI ECU Hardware

Some pictures and notes identifying components inside the Chevy TBI ECU case.
Some may call it reverse engineering.

Pictures with descriptions to follow.

Two Fuel Injector transistors, driven by chips
Two Regulators - 
one provides 5v ref voltage for the TPS, etc
one  provides ??v vcc to all chips on board, as well as the pull-up for the ignition signal from ECU to ignition module
Fuel pump drive transistor
Stepper motor driver
Chip drives/grounds the check engine light and