COS for 4.3L Vortec V6?

[2002_z28_six_speed]

Is there a COS for a 4.3L VortecV6 2002???


Which one would it be? Prefer COS5.

I know the OS is 12212156 and I tried to use 02020005 but it wouldn't start

maybe it had the wrong segments.

[joecar]

Did you do full flash of 02020005 followed by cal only flash of your last 12212156...?

Or, alternately, did you copy each and every table (table-by-table) from 12212156 to 02020005, save to file and then do full flash of this 02020005...?

[2002_z28_six_speed]

I did a full flash of the 02020005 with the file having the correct tables installed into it. all at one time.

Should I flash the 02020005. download it from the pcm and then reprogram with the cals?

[2002_z28_six_speed]

I got worried when I saw diff code segs from OS to OS. The blazer uses the same OS but are the segments compatible?

[joecar]

Copy the segments that you need and do a full flash...

The segments may not be compatible.

[2002_z28_six_speed]

Copy the segments that you need and do a full flash...

The segments may not be compatible.

How do you copy the segments over?

Is there a thread on how to do this or is this like manually copying and pasting the code starting and stopping at certain hex locations?

[joecar]

Open 02020005 as the calibration,

Open whichever 12212156 as the alternate (that you want to get a particular segment from);

Then do Edit->Copy->Entire Segment->xxxx and in the confirmation popup click Yes or Ok;

(where xxxx is each of the segments you want to copy, do this for each segment);

be sure to save the 02020005 file when done.

[2002_z28_six_speed]

Open 02020005 as the calibration,

Open whichever 12212156 as the alternate (that you want to get a particular segment from);

Then do Edit->Copy->Entire Segment->xxxx and in the confirmation popup click Yes or Ok;

(where xxxx is each of the segments you want to copy, do this for each segment);

be sure to save the 02020005 file when done.

Thanks so much!

But you can't copy over the OS segment right? Isn't that where the COS5 functionality is?

[joecar]

That's right, you can only copy the segments other than the OS.

[2002_z28_six_speed]

Copied them all and she purred like a kitten on the first crank! This will make the tuning alot easier!!

The only part that is hard is finding a segment for a NVG3500 5 speed. Everything out there is 4L60E.