Wat is your definition of engine knocking ?

You bought the car in Dec 2021 and Proton SC replaced the knock sensor for you or you got it replaced it outside ?

Saga manual or auto?

That is why it is important to test drive the car that one is going to buy.

Best example of "Top up abit, Buy new car la, 500 years warranty or 500K KM warranty, peace of mind" huh
Pity TS, now have to suffer with new car problem and only god know who and how to solve the problem.

BTW Mysagavvt, we all cannot see the actual problem. When you say "Just like when the knock sensor is faulty" - Do u even know whats the function of knock sensor?
Its for the ECU tune the ignition timing constantly, even when you dont feel it. Rarely these things kaput one.

Misfiring can also cause that "knock" feeling, and even that also, the ECU will just tone down the ignition timing when the knock sensor detects it.
And BTW, stock car with stock ECU cannot be externally tuned or reprogrammed (refering to your first post "'tuned' the car, still same problem).

What PROTON (or even Perodua, for the record) techs should do, is plug in their OBD scanner and take it for a drive. Not plug in while engine idling only.

So you bought the test drive car ?

Should have asked Proton to replace the car if since day 1. Otherwise ask them to compensate time you and your car spent in workshop, but I'd go for whole replacement. Not worth visiting workshop all the time.

what is Saga knocking sound like?

any updates TS?