Timing could have skipped, you may also have a problem with air flow, check mass airflow/intake air temp sensor, and check fuel filter, you did, if there is a lot of fuel on the plugs, its sounding like the fuel is not getting burned, so there are several things that need to be verified, that is good spark, good fuel, good air. And compression, which can mean timing chain.
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Friday, January 15th, 2010 AT 2:20 PM