Belta engine stops when i apply brakes at the signal

[nimi]

Sir, fro the last two three days, after i got changed the ball joints of my belta 2005 ( removed the silencer also) the car first statrted giving problem when AC is turned on. the car runs fine on high speed with AC running, but when i stopped at the signal, it started viberating and the engine stopped. now for the last two days the car stops without running the AC on the signals and i have to start the engine again

[capsat]

check for electrical connection in engine bay - most likely CAT converter connector is broken or not plugged properly -

Get the car scanned as well.

[nimi]

Where is the CAT converter conncter?

[capsat]

goto some workshop with engine scanning facility in your area they can do it for

CATALYTIC converter (a semi cylindrical bowl ) is part of an EFI engine exhaust system ( silencer ) which detects the emissions and through ECU control the engine efficiency