ok this is common when the tb is messed with check all you wires make sure they are properly connected. If this doenst fix it check your ground wires RDE is most common with bad or lose grounds

 

ill doubled checked all the wires are connected. I've tried two working trailblazer tb and the code shows..I tried a l2s tb and the code does not show? Blown chevy let me try to run it without the xlink with the trailblazer tb

 

Is the X-Link set up for the TBSS style 90mm?

 

That's the problem..the xlink is set up for ls2 tb..because it works fine with a ls2 tb

 

Do you have the 2.1 version which has a pink wire loop inside each wire loom?

 

no pink wire loop..im guessing i have an older version

 

Get a new x-link or an ls2 TB. ??

 

If it is a plug n play model with no pink wires, it will only work with the car style 90mm.

If it is the 1.0 version with the long pink wire that you connect to a 5V reference, you can get it to work with the TBSS TB by connecting a jumper wire between the 2 grey wires on either end of the unit.