brother thats totally wrong information that u have been provided.
All cars that we sell we give ECO Idle in running condition or client brings the car back to us.
Most cars with ECO not working is due to them being front hit & if genuine car is doing the same its usually due to weak battery or needs to scanned and run for around 100 kms to get the ECO Idle working again, obviously u have be buckle up, it doesnt work unless seat belt is fastened.
Just say ur message, thus the late reply.
Dont buy the " sab ka hee off hota hae nonsense. "
The Sellers just dont want cooperate & end up providing a free scan or new battery, simple.