Dear frnds, i own a palio 1.2 sports model. Recently the engine was overhauled at asc. But after overhaul it is giving jerky movements and is giving black smoke...........please help me out i dont want to loose my palio......thanks in advance

Black smoke means unburnt fuel.
Go back to the garage that did the overhaul.

Could be a problem with the fuel injection system which is controlled by the Magneti Marelli electrical control unit (ECU) fitted in your Fiat Palio. See that all connections to this ECU are in place before anything else.

check small air pipe that go,s into ecu make sure it is conected. It can make your car heavy on petrol and smell petrol and black smoke. .

morsig said:

check small air pipe that go,s into ecu make sure it is conected. It can make your car heavy on petrol and smell petrol and black smoke. .

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morsig im having that same problem but cannot see where the pipe plugs into can you send a pic or shed more light?

bellbeats15 said:

morsig im having that same problem but cannot see where the pipe plugs into can you send a pic or shed more light?

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did you get any reply on the pipe? there is an outlet or inlet at the back of the fuel injection system but i don't see any place in the ecu where i can plug a pipe

did you solve the problem? and how?
thanks