I have a 2002 Mitsubishi Galant and it blows black smoke when I push the accelerator. Why is that?

Asked by complex_55 Mar 15, 2013 at 02:11 AM about the 2002 Mitsubishi Galant ES V6

Question type: Maintenance & Repair

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DavidH25 answered 3 years ago

Black smoke is unburned gasoline. Possibly your o2 sensor has failed and not sending a signal to the ECU, or the wrong signal, that is what controls the fuel/air ratio and your car is running very rich

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87,175

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tenspeed answered 3 years ago

Another possible cause is a bad fuel regulator. The increased fuel pressure squirts extra fuel into the cylinders.

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87,175

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tenspeed answered 3 years ago

Did this start suddenly or has it been happening a long time? If it has been a long while, it could be worn piston rings and that could be burning oil.

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DavidH25 answered 3 years ago

Yeah,right on. he (she)? didn't say miles on car.

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migration_judge_roy answered 3 years ago

dirty air filter might cause this-

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complex_55 answered 3 years ago

The mileage is 152,000

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migration_judge_roy answered 3 years ago

for a mitsubishi? the Zero was only supposed to last long enough to complete it's mission. has your mitsubishi completed it's mission?

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