the car performs very well in my opinion when I'm normally driving it alone.
But under load, the engine has to evidently work harder, and in this case, its pinging noise increases. But with 4 people sitting in it after a long time, the performance was so weak that i drove slow in order to not make too much pinging / spark noise.
no issue with cat, got it cleaned very recently, spark plugs changed a few months ago.
I wonder what it could be. Since my regular mechanic has no clue.
can anyone recommend a good diagnosis mechanic in lahore?