Have you checked fault codes? There are so many things that could be causing it, checking and repairing any codes would be a start.
If you need further help, I’m available over the phone at https://www.6ya.com/expert/oscar_403cc49e0f00cda7
SOURCE: my 1991 mazda 626 runs
Hi Arelis,
It sounds like two different problems. White smoke is indicative of water in the fuel. If it was oil burning the smoke would be blue.
The oil may be leaking out. Is there evidence of oil leakage on the road when you park? Check the engine for for oil leaks.
There are additives available at auto parts stores that deal with water in the fuel supply.
Please feel free to contact me. More details will be needed to get to the source of the oil problem
Mike
SOURCE: i have black smoke coming out of my Volvo 940
could be but not prob not any check engine lights black smoke indicates it is running rich (more fuel than air) i would lean towards oxygen sensor . engine codes would be the place to start
SOURCE: My golf 3 electric caburetor mk 95 brings out
do you means the throtle body ........ if the car is fuel ijected there are some sensors afect the fuel injeccion ....the black smog means too much gas then depend on how good you keep your car first if you put cheap gas maybe the o2 sensors are burnd check or clean the mass sensor only use mass sensor cleaner and check for codes MIL CODES
SOURCE: My Toyota Siena 2002 model
IS THE CHECK ENGINE LIGHT ON.IF YES COULD BE FAULTY PCM.BUT HAVE CAR CODE SCAN TO MAKE SURE BECAUSE YOU COULD HAVE A FUEL SOAK CHARCOAL CANISTER , WEAK IGNITION SPARK, FAULTY FUEL PRESSURE REGULATOR.AND LOW CYLINDER COMPRESSION ALL OF THESE THINGS WILL CAUSE BLACK RICH SMOKE MIXTURE.
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