Question about 1994 Nissan Altima

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1994 Altima SE idles very poorly and

1994 Altima SE ,with 184000 miles, idles very poorly and "chugs" when idling, especially when put in reverse. knock sensor, plugs, dist. cap and rotor have been replaced. ERG vale is functioning. injector cleaner was used several times. vacuum leak was repaired. what else could be the problem?

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  • Anonymous Jun 12, 2010

    thank you for the information. i will try it. i also forgot to say in my first post that i recently had the fuel pump and fuel filter replaced and the fuel pressure was good. thanks again!

  • Anonymous Jun 25, 2010

    the problem resolved about 3 weeks after adding marval mystery oil to the fuel system and the oil. now has more horsepower it seems. it's running the best it's ever run( i bought it 6 years ago with 164000 miles on it).so, maybe it was a clogged injector.

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CHANGE FUEL FILTER.HAVE FUEL PRESSURE CHECK AND HAVE THE IGNITION TIMING CHECK.TIMING COULD BE OFF A LITTLE.HAVE IDLE SPEED CHECK ALSO.

Posted on Jun 12, 2010

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