Mechanics

SPUTTERS ON TAKE OFF AND WHILE SITTING

1997 Mitsubishi Diamante • 132,000 miles

The 1997 mitsubishi diamante sputters on take off and while sitting at red light in drive. When in neutral it idles fine and runs tight when I gun it on take off. I have changed plugs and wires, distributor cap and rotor.

When slowly pressing down the gas peddle on take off the engine sputters as if not running on all cylinders. When I gun it, it seems to run tight with lots of power. If I add fuel injection cleaner to the fuel it seems to help a a great deal but does not completely solve the problem.
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Drew Belter
October 27, 2011.




Do you have a check engine light and when was the last tune-up?

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-

Tiny
Rasmataz
Oct 27, 2011.


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