Honda City 2012 model i have... all tuning Done... Car Drops Rpm With only Ac while Pressiing clucth on driving mode not Drops on idle and Do not drops without ac...Ac Service also Done... Throttle Cleaned at Last oil change and All Tune Has been done...Experts please advise the Solution?
You can try resetting the ECU either if you have OBD2 scanner.
But if you dont have scanner or any tech tools, just disconnect car battery for half an hour, hopefully it should solve your problem.
Problem Solved By High octange and Ac service That has done a day ago but Results Aj Mily and rpm gets Normal...
You dont need Hi Octane just try and get normal petrol from Company Operated stations
City doesn't need high octane gasoline. Use simple 95 RON Petrol.