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Nissan 240SX

What is the cause of very rough idle on a 240SX with new plugs wires cap and rotor?

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2004-10-05 08:58:21
2004-10-05 08:58:21

I HAD SIMULAR PROBLEM AND FOUND THAT THE TPS($60) WAS CAUSING THE IDLE PROBLEM.LOCATED NEAR THE THRATTLE MOUTH.ALSO CHANGE THE IDLE SENSOR($125).MECHANIC SHOULD CHECK THE COMPUTER IN YOUR CAR TO BE 100% SURE.THIS WAS MY CARS PROBLEM ONLY .

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Rough Engine Performance AFTER Changing Distributor Cap and RotorThe only thing I can think of is that in the process of the changeover, the wires between the newly installed rotor and the spark plugs were not reconnected to the proper "towers."As a result, the spark plugs are not firing in the proper order thus causing the rough running. Since the engine will run, I also suspect that possibly only one or two plug wires are improperly connected.

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Corrosion inside the distributor cap. Get a new cap and rotor.


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