P1647 fault codes in scorpio Mhawk - Cars & Trucks

https://www.motorera.com/auto-service-repair-manual/Mahindra/Scorpio
Try here

dealer --tractor shop --online search for repair manual

I suggest you get one of thos e manuals from www.reliable-store.com they can help you in this

You have trapped air, did you follow the bleeding procedure in the factory service manual?

O2 sensor upstream

I need the timing diagram of scorpio mhawk

P1647 ECM HO2 Sensor control
malfunction -
Mahindra Scorpio P1832 Possible Solution :
The crankshaft sensor signals the fuel injection computer or the ignition control when the cylinders are firing. This causes the ignition coil to provide a spark and the injector to inject fuel into each cylinder at the right time.If either sensor isn't working correctly, the car will run rough and the engine will be less efficient. In later car models, the car's computer can usually keep the vehicle running, but the engine warning light on the dashboard goes on to warn the driver.

dear senthil,
your cars vaccum modulator has gone...thats why you are hearing that sada sada sound continuosly...

You can look up the code on www.bluejag.co.uk The problem is an O2 sensor (Bank 2 Upstream)and there are also details on the site about how to change it.
Fairly simple job

p1647 is linear o2 sensor control chip bank 2 p1111 is intake air temp sensor