Mr. Gujar 96 aKa Honda Specialist for your kind information D15 VTEC never made into any Pakistani Honda.
Its D15Y3 non VTEC SOHC low compression motor with OBD-II in Eagle Eye EXi.
1.5K idle RPM might be for Bedford trucks and diesel buses.
2001-06 EXi RPM is 700 +- 100 RPM without AC.
With AC on it will be 800 RPM constant due to switch.