Why does my nissan run good when cold but rough when hot?

1996 NISSAN QUEST
200,000 MILES
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MJSTUMP
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I have replaced the knock sensor, plugs, plug wires and the fuel filter. It runs great when it is cold but once it warms up it acts like it is running out of gas and pops through the exhaust.
Aug 25, 2011 at 10:21 PM
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RASMATAZ
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https://www.2carpros.com/articles/engine-hesitates

Could be caused by one of the following below

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Knock sensor
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note:If it doesn't apply disregard it and keep testing.
Aug 27, 2011 at 9:30 PM