2001 Tribute V-6 engine runs rough
 

The check engine light is on in my friends 01 Tribute. The car has 100K miles on it. Checked the engine codes and the following codes appear- P0352, P0302, and P0305. Replaced the EGR hose that runs off the intake to the lower side of the engine and that seemed to help as it was leaking vaccum. Also replaced the plugs and wires, but did not solve the problem.
Any ideas where to start?
Thanks
Ken

I think you started at the right place with the plugs and wires. The question is where to continue.
To save typing I send you this way: P0305 - Check Engine Light Diagnostic Trouble Code Description

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