View Full Version : 99 F-Body engine harness & PCM wiring diagram

04-02-2012, 03:40 PM
Hey guys, Where can I find a FREE pinout and wiring diagram for the engine harness & PCM for a 99 Trans Am? Been down a couple of rabbit holes but have yet to find the real deal. Help!

04-03-2012, 11:01 AM
Dig around in the Conversions & Hybrids section. Lots of guys post that info during their swaps.