Question about 1996 Volvo 850

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Just replaced airflow sensor on 1996 850 turbo- now too much gas getting into motor-sputtering-idles fine but barely gets down the road- big black clouds of smoke coming out of exhaust-could this be computer chip?

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Would be, that it is turbo seals. But the Volvo's PCV valve becomes clogged and creates crankcase compression. Before you remove the turbo, pull the dipstick out while the engine is running to see if you have some smoke coming out there.

If that checks out possitive... look into replacing the PCV valve. Also check the EGR and air filter.

Hope this help; tell us news.

Posted on May 05, 2010

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