2003 Mitsubishi Pajero black smoke

2003 MITSUBISHI PAJERO
17,000 MILES
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MIRZA TARIQ
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hi sir often i see some kind of black smock and smell from exhust pipe i am worried about that if that is from pistons or from some electrical side.i am changing the engine oil and filter with in 3000 km run.
Sep 15, 2013 at 1:44 AM
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MHPAUTOS
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Petrol or diesel?
Sep 15, 2013 at 1:48 AM
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MIRZA TARIQ
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its petrol sir
Sep 17, 2013 at 9:22 AM
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MHPAUTOS
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The engine is running very rich that is it is using far to much petrol, you may have a faulty coolant temp sensor, this when faulty can case the ECU to stay in cold start mode and run rich, have this checked out
Sep 18, 2013 at 3:46 AM