Loss of power and funny noise when put foot down changing gear

2005 Renault Kangoo 1.5
Car: Renault Kangoo
Year: 2005
Variant: 1.5
Categories: Running Rough, Starting & Power Loss
When putting into another gear and put your foot down to get power it makes a funny noise like crakling and it looses power and black smoke belts out of the back , have had filters changed, and new fan belt changed . Can anyone help ?.
Problem added: Sep 17, 2017 (6 years ago)
Black smoke is unburnt fuel;
Have you had it scanned?
Answered Sep 17, 2017 (6 years ago)
Black Smoke

This is due to a air to fuel ratio imbalance, either the fuel system is delivering too much fuel into the engine or there is not enough clean air (oxygen ) a few things to look for:
•Faulty injectors (injectors need attention at about 100.000 to 120 000 miles)
•Faulty injector pump
•Dirty air cleaner
•Turbocharger or intercooler faulty
•Problems within cylinder head, valves clogged up due to faulty EGR (exhaust gas recycling unit)
Answered Sep 17, 2017 (6 years ago)

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