NIStune TYPE 1 V.3.5 - Manual (Page 6)

Nistune Type 1 Hardware Installation Page 6 of 33
3. Resocketing the ECU
IMPORTANT
Nissan ECUs are sprayed with conformal coating at the end of manufacture. This is to protect
digital circuitry from moisture. Remove conformal coating around the chips to be removed from
the ECU before desoldering.
Use Acetone or paint thinner to remove the coating on both sides of the chips, with a hard bristle
brush and cloth to remove excess coating.
This solution should also be used for removing flux after soldering in the ECU socket and CPU
connector to give the ECU a clean finish after installation
After removing the conformal coating then the chips can be desoldered. Ensure that a suitable
desoldering gun is used and that there is a sufficient heat bridge between each soldered pad and
the desoldering gun. Flux or additional solder can be used to create the heat bridge if reuqired
Read our soldering guide for more information