Civic B Series RPM Tuning

We tuning back RPM Idling after replacing intake part as:-

Throttle Body Servicing/Replace
Replace TPS Sensor
IACV Replace/Cleaning
Gasket Replace
Etc...

How?
1) Start ur engine after cool fan running (take 5-10 minutes).
2) Unsocket IACV sensor.
3) CEL appear. Ignore it.
4) Use Idle Screw to tune ur idling. Get it around 850rpm.
5) Off ur engine.
6) Socket back ur IACV sensor.
7) Remove negative battery at least 1-5 minutes (depends).
8) Then plug in back negative cable.
9) Done.