Engine Performance problem
1996 Other Nissan Models 6 cyl Front Wheel Drive Automatic 150000 miles
My " QUEST" loses power after it's warmed up. It won't go faster than 10 miles per hour on flat or uphill. The RPM dial does'nt move over 2. Sometimes it boggs down and dies. Iv'e already changed the fuel filter, air filter, cap, rotor, plugs, wires and oxygen sensor.I'd appreciate your help. Thanks.