Update: Finally got the chip and the time to do this job. Remove ECM open it, remove and replace chip, make heat shield. It started right up and runs perfect, no codes or abnormal fuel trims, no injectors loosing ground and dropping out.
First remove the ECM and open the case, do not go more than the angle shown.
This and a small screwdriver are what works well for opening the case, use a small razor knife to very carefull slice the RTV.
This is where you can carefully pry after removing the 3 torx screws. start at the lower right corner.
This is the new chip installed, #1 pin is on the upper right looking at it from the open angle, it is identified by the round dot.
The old chip. You must remove the coating so you can get the mini heat gun to it.
Reseal the ecm with grey RTV, no need to remove any in the ecm if it is not loose just a thin layer as can be seen in the above pic of the unit.
I made a plate using heat resistant 1/4" fiberglass plate and 4 rubber cushions, you need to add a small ground wire and attach it to one of the throttle body bolts.
Reinstall the ECM.
No Tech 2 needed (I have an original when needed) as it is already married to the car, I just checked the fuel trims with a cheap simple scan tool. Previously they were LTFT -25 with a rich code, then it would bounce to +25 then act somewhat normal for a few seconds. I drove it 20 min and nothing abnormal, the chip was loosing its main ground as well as the injector and bypass valve switches. These ECM are over a grand but are no longer available and for used the ebay idiots are smoking crack with their prices and repair places rarely fix these right, so its time to dive in.