So here's the things that have been done uptil now:
Changed ignition coils
New spark plugs
Got the HIM computerized tuning done
Changed alternator (voltage across battery is now 14.2 volts with ac lights etc)
Pros: the rpm is kinda stable at 850 now,the car has a bit of vibration without AC but when the AC kicks in rpms drop to 500 as soon as the fan comes on and then they come back again.
My mechanic asked me to get the fan checked out as it may be causing stress on the electricals and my electrician said there's no problem with the fan.
I noticed that whenever I turned the AC,the lights of my car dimmed significantly.Could it be something like like a vacuum leak because even if the idle is stable vibration is felt throughout the body.I did get the mounts checked and they were fine,it seems like an engine/electrical issue as RPMS aren't supposed to go down when the compressor kicks in.
Odo reading: 80,000 kms
City Vario 08
Excessive electrical load
@RollOnBigMaMa @ahmadbila @Xulfiqar @rustam54 @mustafa8228