Hi guys, had problem with engine stalling when rpms were low (at stop signs or crossroads), changed fuel filter and it doesn't stop anymore but rpms drop to 0.5 and engine shakes when started and when driven. Rear bumper and rear light has black deposit on it, so it is quite black smoke coming out now.
Seems like fuel use is increased also. 10 liters on 70 km, it is quite high. No check engine code is thrown.
What could it be?
Spark plugs? O2 sensors? Injectors are blocked? What to do, please help.
P.s. Air filter is new in it.
"What could it be? Spark plugs? O2 sensors? Injectors are blocked? What to do, please help"
Can you pull the spark plugs, tell us what you find, and we can go from there.....
