OBD II Location

01z71 · August 7, 2005

I bought a laptop dyno and was wondering were the OBD II is located on our trucks so I can plug it in and see what I'm makin HP wise. Thanks Guys!

99-2door · August 7, 2005

The datalink connector is under the dash on the driver's side. Where it is on just about every vehicle.

mcreyaufmiller · August 7, 2005

So where is the PCM on the OBS?

bronyaur · August 8, 2005

For 1988-1995 models, the ECM is located under the right hand side of the instrument panel.

For 1996-2000 models, the PCM is mounted to the left inner fender under the hood:

99-2door · August 8, 2005

So where is the PCM on the OBS?

<{POST_SNAPBACK}>

HAHAHA Good one!

mcreyaufmiller · August 8, 2005

That is what I thought, Just wanted ot make sure.

bronyaur · August 9, 2005

That is what I thought, Just wanted ot make sure.

<{POST_SNAPBACK}>

I'm lost. The old body style (OBS 96-00) has a PCM, so I don't get it.

When it comes to the comment about the PCM and the follow-up about it being a "good one" I think I'm missing something. At the risk of sounding ignorant, can you "clue" me in, 'cause I don't get it.

Matt ;-)

TonyMazz · August 9, 2005

So what cable are you using ?

Do you have a serial cable 9-pin -to- OBDII connector?

What software are you using?

What year vehicle the 2004 with the class 2 communication or the new GM VLan?

Just curious as I'd like to do this myself...might consider the autotap but wondering how you plan on doing it...

mcreyaufmiller · August 9, 2005

Yes, they have a PCM. They are flash programable to update or change the software. If you get ahold of www.wait4meperformance they can give you all the information you need on your PCM.