Anyone out there know how I can determine if my 1994 Z28 PCM code is revision "B" or "C". Wanted to enable performance mode (add TA Transmission Perform button), but 1994 F-body performance mode is only supported in rev "C". I was thinking I could momentarily ground the PM enable wire (C13) and look at the indicator line (A13) with a voltmeter to see if it switches on and off. But there should be an easier way. Any ideas appreciated.

 

I thought all 94-95 f-body PCMs had the capability. I was really not aware of different revisions (though, I don't pretend to keep up with all the PCM stuff).

 

If you have access to a scanner you could watch the PM mode that way.

 

After looking at your post, (I'm using "TTS DataMaster-EE") I did find a perf/norm display box on the scan screen that I passed over originally. It is set to "1" right after startup on a Z28 (no switch). So I assume 1 = Normal, 0 = performance, can't find any perf/norm help topic in the documentation, I follow up on this thanks. As far as the rev B or C , I'm still hunting down an answer. Bob D.

 

Hey guys got my answer... need to view the PCM read .bin file and know the offset where they store the revision byte. I am at "C" ..Thanks