Not wanting to bust anyone's chops...

But for the LT1 cars (and latter LSX engines AFAIK) PCM stands for "Powertrain Control Module". Not familiar with the term "Pulse Code Modulation" that is heading up the topic here. TBI L03/L05 cars use an ECM (Engine Control Module) since is doesn't have an electronically controlled tranny.

Just semantics, I guess.

Anywho, I'm looking forward to good tuning discussion since it's an area I don't have a lot of personal experience in. I have only purchased tunes from vendor for my cars; I don't know the nuts and bolts of it yet.

Yup, I was puzzled on that one myself!

haha i never knew what PCM stood for

ECM, VCM, BCM, PCM...

Engine Control Module (engine only)
Vehicle Control Module (PCM & BCM Combined)
Body Control Module (body stuff)
Powertrain Control Module (engine&trans)

Yeah, I didn't know what it stood for, so - instead of asking, I just put up what I thought and waited for this topic to come about.. So the title has been updated..

Now.. Is the rest okay? Or should I add ECM or anything else? To the title and/or subtitle?

Thank you!

:thumbsup: :highfive: