Run the fault codes dark smoke ( black) is an indication of incorrect air/fuel mixture this can be from leaking injectors, faulty seal , over pressure in fuel system, faulty heated oxygen sensors, blocked air filter, faulty MAF/VAF sensors the fault codes reading will give a better indication of where to start in the fixing process
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Run the fault codes
dark smoke ( black) is an indication of incorrect air/fuel mixture
this can be from leaking injectors, faulty seal , over pressure in fuel system, faulty heated oxygen sensors, blocked air filter, faulty MAF/VAF sensors
the fault codes reading will give a better indication of where to start in the fixing process