thanks, I haven't cleaned it yet...problem is still there...the problem is that car suddenly starts de-accelerating like there is no fuel supply to it, and when throttle is floored 2or 3 time it come back to life with CHECK light which go away after some time..
we checked it with diagnose tool it was showing MAP error that time, any other sensor can cause this problem too ?
new sensor costs whooping 6K
and about the coolant part, car was having green coolant from day one, that brown colour is of rust...
there is a minor leak some where I had to locate it so for time being im using plain water..