Mechanics

ROUGH RUNNING

2000 Mazda MPV

Rplaced the mass air flow sensor cause it was bad. After I replced it the van would lope, then when it got up to operating temp the idle went real low.I shut off the van and when try to start it the van wont start unless you push the pedal all the way to the floor and crank the engine then it starts but goes to low idle and lopes.
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Redbone
October 22, 2011.



http://www.2carpros.com/articles/engine-misfires-or-runs-rough

1.Defective spark plugs

2.Inadequate spark/coil,defective spark plug wire.

3.Lack of compression

4.False air leakage.

5.Faulty fuel injectors.

6.Insufficient fuel pressure.

7.Contaminated fuel.

8.EGR valve that is leaking.

9.Oxygen sensors.

10.Throttle position sensor.

11.Manifold absolute pressure sensor

12.Mass Airflow Sensor

13.Idle air control valve

Note: If it doesn't apply disregard it-

Rasmataz
Oct 26, 2011.