Custom OS - Trans stuck in OD??

[Meister]

I put a custom OS into a 2002 LS2 Corvette and now it seems like when you put the car into D it stays stuck in 3rd or 4th gear.....you can manually shift from 2nd and 3rd, but then when shifting into OD, nothing happens.

[Meister]

Putting the car into 1st does nothing...only 2nd, 3rd and OD move the vehicle and of course reverse.

[joecar]

Hi Paul,

Did you do a full flash of the COS file followed by a cal-only flash from from the GM file...?

Is this particular COS file compatible with the GM file...?

What OS id is the GM file, and what OS id is the COS...?

[Meister]

Hi Paul,

Did you do a full flash of the COS file followed by a cal-only flash from from the GM file...?

Is this particular COS file compatible with the GM file...?

What OS id is the GM file, and what OS id is the COS...?
Yes, I followed the steps in the manual to do a full flash

The OS that was in the car, as it was already tuned, was 12221588 (online it shows this as a 2003 file) and calibration 9391331

I did a full flash with 02030003 and then I dumped a stock.

[Meister]

After looking into this more, I noticed there is a OS# that is the same for Auto and Manual. I may have used the right #'s but put in a manual trans file....

[Meister]

All fixed....boy do I feel like a moron

[ScarabEpic22]

Glad you sorted it out, there are times when its great having the same OS with both auto and manual, but other times its a PITA!

[joecar]

Stuff happens... :doh2:

The ability to realize what happened and to recover from it shows experience. :cheers: