Hi All
I am Özgür and writing from Turkey.I am user for Mazda 323 bj 2.0 ditd 74kw vehicle.
There is lots of black smoke by this vehicle for more than 2800 – 3000 rpm and this vehicle can’t be increased 140 km/h and 3000 rpm in 5.gear. Also, when it is in this speed, you can see lots of black smoke and this causes the traction decreasing.
Nobody can understand this issue because of this vehicle does not become in Turkey.
Processes that were made to vehicle like below;
-EGR Valve Canceled
-Turbo revised
-Flowmeter (Maf) sensor changed
-Catalytic cleaned
-Air filter changed
-Fuel Filter changed
-Timing belt changed (cents’ adjusments were made and it is good)
-Clutch Kit changed
-Brake center changed
-Last one , Pressure sensor of fuel pump leaks little bit
PLease help me, I am waiting your advices …

 

You may need to have your fuel injectors cleaned.