Garrett Chip Install Page 5

To open up the ECU:

Eight screws must be removed.  

• First the two phillips-head screws  A plus two more just like them on the other end of the ECU (you can't see those in this picture).
• The the four Torx screws B.  On some ECUs, these are T10, and one others they are T15.

When all 8 screws have been removed, pull the electronics from the plastic housing.

[This space reserved for another picture that shows the guts being separated from the housing]

We'll continue on the next page where we finally get at the chip...