Once the engine warms up, my Matiz loses power considerably. I was told it might be the egr valve because some black smoke is also released when accelerating sharply. But oil is not consumed, and the engine has been recently serviced. Hope you can help me.
Car had stalled while driving,renewed spark plugs,fuel supply ok,cambelt with timming ok,spark ok,injectos ok spraying,pulsating. If i remove egr car start but is very rough. Compression ok.
I have a 2005 Chevrolet Matiz and anytime I start it from cold the engine misfires and vibrates until the engine becames hot then the misfiring and stalling stops. I have change my plugs, plug wires, coil , injectors but its so till the same